which sets a cookie "username" with the value "joe" in a servlet?

Given an HttpServletRequest request and HttpServletResponse response, which sets a cookie
“username” with the value “joe” in a servlet?

A.
request.addCookie(“username”, “joe”)

B.
request.setCookie(“username”, “joe”)

C.
response.addCookie(“username”, “joe”)

D.
request.addHeader(new Cookie(“username”, “joe”))

E.
request.addCookie(new Cookie(“username”, “joe”))

F.
response.addCookie(new Cookie(“username”, “joe”))

G.
response.addHeader(new Cookie(“username”, “joe”))

Explanation: