Greetings sir/madam. I've been looking at this problem for sometime but haven't got any clear results on it... I'm unable to provide an answer for "A” nor “B” and would be lovely for someone to clarify this question of mine.

Greetings sirmadam Ive been looking at this problem for sometime but havent got any clear results on it Im unable to provide an answer for A nor B and would be class=