it should be mentioned how many answers are expected

The standard Profiles in Salesforce are: System Administrator Standard User Read Only Solution Manager Marketing User Contract Manager Partner User High Volume Customer Portal High Volume Portal Customer Portal Manager Customer Portal User Chatter Only User Salesforce Platform User Work.com Only User

They say "is" but give actually 3 answers!!!!

It says which of the following is..... so shouldn't it be one answer to it. I think C

For me 'BCE'. Be careful with Read only user because was converted to custom profile in the Summer'21 release, orgs after this release dont have read only profile available. And Partner portal user is Parner user. https://help.salesforce.com/s/articleView?id=sf.standard_profiles.htm&type=5

Read Only and System Admin are both listed as standard profiles. Its CDE https://help.salesforce.com/s/articleView?id=sf.standard_profiles.htm&type=5

B. Read only C. Marketing Director E. Standard Administrator => https://help.salesforce.com/s/articleView?id=sf.standard_profiles.htm&type=5

NOTE The Read Only standard profile was converted to a custom profile in existing Salesforce orgs with the rollout of the Summer ’21 release. This change allows you to edit permissions and rename the profile. New orgs created in Spring ’21 and later don’t have the Read Only standard profile, but these orgs can use the Minimum Access profile and assign custom permission sets to grant users read access as required. For more information, see the knowledge article

Read Only is Custom now. "The Read Only standard profile was converted to a custom profile in existing Salesforce orgs with the rollout of the Summer ’21 release."

BCDE , https://help.salesforce.com/s/articleView?id=sf.standard_profiles.htm&type=5

The format of these questions is not at all in sync with the exam model.

According to the resource link - Partner Partner User Can log in via a partner portal or an Experience Cloud site. shows as standard profile, so how it can be non std profile? i think its wrong, only 2 options are right.

"NOTE The Read Only standard profile will be converted to a custom profile in existing Salesforce orgs with the rollout of the Summer ’21 release. This change allows you to edit permissions and rename the profile. New orgs created in Spring ’21 and later don’t have the Read Only standard profile, but these orgs can use the Minimum Access profile and assign custom permission sets to grant users read access as required. For more information, see the knowledge article"

The list of standard profiles can be found here: https://help.salesforce.com/articleView?id=standard_profiles.htm&type=5

Read Only is actually a profile name under Salesforce Standard Profile.

I expected read only to be included as it defines access type not a profile name