A marketing director wants to test if the average sales of a new Cisco cloud security product is greater than $$400$M$.$ Select any of the below that are the parameter of interest.

Question $20$ options:

a$)$

$$Sales

b$)$

average sales of a new Cisco cloud security product $>$ $$400$M

c$)$

sales of a new Cisco cloud security product

d$)$

$$400$M

e$)$

average sales of a new Cisco cloud security product