How many elements are given in a training objective that states "The call centre operator will be able to handle $20$ inbound calls per day during his$/$her regular shift, using customer information software, and will be able to generate $$850$ in incremental revenue from new customers"?

Question $25$ options:

a$)$

$2$

b$)$

$5$

c$)$

$3$

d$)$

$4$