Which HTTP method will the browser use to retrieve such a partial response?

A web browser need NOT always perform a complete request for a particular page that it suspects
might NOT have changed. The HTTP specification provides a mechanism for the browser to
retrieve only a partial response from the web server; this response includes information, such as
the Last-Modified date but NOT the body of the page.
Which HTTP method will the browser use to retrieve such a partial response?

A.
GET

B.
ASK

C.
SEND

D.
HEAD

E.
TRACE

F.
OPTIONS