Horacio has been promoted from first$-$line manager to middle manager. He has spent most of his time $\_\_\_\_\_\_$ and $\_\_\_\_\_\_$ but now expects to spend $\_\_\_\_\_\_$ time on each of the four management functions.

a$.$ leading; controlling; equal

b$.$ managing; controlling; equal

c$.$ organizing, leading; less

d$.$ controlling; planning; more