Yasmin and Zeek Are Lawyers Working at V, W, and X

Yasmin and Zeek are lawyers working at V, W, and X LLP. Yasmin works 48 hours a week, and Zeek also works 48 hours a week. They handle two types of cases, intellectual property (IP) cases and corporate fraud (CF) cases. It takes Yasmin 6 hours to handle each IP case and 4 hours to handle each CF case. Zeek can finish an IP case in 3 hours and a CF case in 6 hours.
-Refer to the scenario above. Suppose that the two lawyers' boss wants the total number of IP cases worked on by them to be equal the total number of CF cases worked on by them. So long as the total number of IP cases equals the total number of CF cases, their boss does not care which lawyer works on how many of which type of case. So Yasmin and Zeek decide to take advantage of their comparative advantages. How many IP and CF cases would they finish? (Hint: Assume that they can work on a fraction of a case.)

A) 12 and three halves of each type of case
B) 13 and a third of each type of case
C) 16 and a half of each type of case
D) 24 of each type of case