Question

Complete the following sentence. (Use mon, ma, mes, or 'no possessive adjective' as appropriate.) ________ copain s'appelle Marc.

Ma
Mon
Mes
No possessive adjective

Answer 1

The answer is Mon I think

Answer 2

Mon
this is because you are talking about Marc, who is male
Mon is the male possessive whilst ma is female (pour exemple, ma sœur) and mes is plural (mes cousins)
J’espère que ça t’aidera