PLEASE HELP What is the function of the comma in the sentence below?

When you are finished , come to the house.

A. to introduce a list
B. to interrupt
C. used with a conjunction to link sentences
D. to follow an introductory element

Match the types of supporting evidence to the examples. fact anecdote expert opinion emotional appeal sarah's outcome illustrates what can happen when children are left alone too long. arrowright dr. malfoy says physical therapy is for a sprain. arrowright austin has a 21.9-minute average commute time. arrowright we pledge to never stop striving to pluck these vulnerable animals from the jaws of danger. arrowright

Which conclusion about the eldest magician does this excerpt support

Which is not a controlling idea in the essay? a) average joggers b) importance of tradition eliminate c) olympic-level competitors d) fräbel-designed crystal peach