I need help with this question

Company A desires a variable-rate loan but currently has a better deal from the fixed-rate market at a rate of 13%. If Company A borrows from the variable-rate market, the cost would be LIBOR+2%. In contrast, Company B, which prefers a fixed-rate loan, has a better deal from the variable-rate market at LIBOR+3%. If Company B borrows from the fixed-rate market, the cost would be 16%. Knowing both companies' needs, Bank C designed a swap deal. The deal is outlined in the following:

1)Company A obtains a fixed-rate loan at 13%.

2)Company B obtains a variable-rate loan at LIBOR+3%

3)Company A pays Bank C a variable rate of LIBOR+1% and receives a fixed rate of 13.3% from the bank.

4)Company B pays Bank C a fixed rate of 14.5% and receives a variable rate of LIBOR+2.0% from the bank.

How much is the gain to Bank C?

Is it

a.0.4%

b.0.8%

c.0.6%

d.1%

e.0.2%