What does the underlined Modal express in the following sentence?

May I come in ?

formal permission

The correct answer is OPTION 2 formal permission

The underlined modal "May" in the sentence "May I come in?" expresses: formal permission

The modal "may" in the sentence "May I come in?" is used to seek or ask for formal permission. In this context, it is a polite and formal way of asking whether one is allowed to enter a place. The use of "may" in this sentence indicates a request for permission rather than expressing authority, capability, or probability.