Lesson 1: what has value? unit introduction answers: 1.message 2. his 3. possessive final score is 3/3 (100%)

The questions i have to  lesson 1: what has value? unit introduction (unit 5) are as follows: 1. which of the follow  pronouns complete the sentences correctly? (1 point)each of the boys began to clean desk.a: hisb: himc: their2. what is the case of the underlined pronouns in the following sentence? is the umbrella yours or mine?                           a: objectiveb: possesivec: nominative3. true or false: this unit focuses  on the different values of upper-class society.a: trueb: falsethe under "yours or mine" means its underlined.my answers to these questions are: 1. a: his2. b: possesive3. b: falseim not sure if these are 100% correct but i am positive number 1 is correct.

It's a, if this is wrong, i'm so sorry, i'm just trying to