Jeffrey is a DJ at a local radio station. For the second hour of his shift, he must choose all his music from the top 100 songs for the week. Jeffrey will play exactly 12 songs during this hour.

b) Jeffrey wants to start his second hour with a hard-rock song and finish with a pop classic. How many different playlists can Jeffrey prepare if he has chosen 4 hard rock songs, 5 soul pieces, and 3 pop classics?

c)Jeffrey has 8 favorite songs currently on the top 100 list. How many different subsets of these songs could he choose to play during his shift?

Solve the question with the correct answer and a well-detailed explanation, please...!

It is important for me please so don't give any false answers please...!