Which choice best describes the <CODE>, <KBD> and <SAMP> tags?

A.
These are examples of block-level tags in HTML 4.0.

B.
These tags have been deprecated from HTML 4.0, and should not be used.

C.
These tags are used to build HTML 4.0 forms.

D.
These tags can make text appear in a fixed font in an HTML 4.0-compliant browser window.