When developing their aggregate planning strategy, Wes and Steve would use which of the following as a method for altering capacity in the short term?

Group of answer choices

a$)$ Developing new products that would require effort of idle workers

b$)$ Employing part$-$time staff

c$)$ Procuring new suppliers that offer shorter lead times

d$)$ Purchasing new lunch trucks

e$)$ All of the above are methods of altering capacity for aggregate planning purposes in the short term