Which policy expression must an engineer use to enable compression for javascript files?

Which policy expression must an engineer use to enable compression for javascript files?

A.
HTTP.RES.BODY(0).CONTAINS(“javascript”)

B.
HTTP.REQ.BODY(0).CONTAINS(“javascript”)

C.
HTTP.RES.HEADER(“Content-Type”).CONTAINS(“javascript”)

D.
HTTP.REQ.HEADER(“Content-Type”).CONTAINS(“javascript”)