Which of the followings are correct about capacity planning?

I. a short$-$term commitment of resources

$2$ II$.$ a small determinant of initial fixed costs

$3$ I. Its goal is to achieve a match between supply and predicted demand

$4$ III. shortage of capacity may lead to possible loss of customers

a$.$ I and II

b$.$ III and IV

c$.$ II$,$ III and IV

d$.$ All of them