You can't discard the formatting for a video once it has been set

Generally speaking the courts have ruled that information which users voluntarily post to Web sites does not maintain a ________ of privacy unless affirmative measures are taken to ensure said privacy

Fill in the blank(s) with the appropriate word(s).

A(n) ________ indicates that the remainder of the line is a comment.

a) double-quote character b) single-quote character c) underscore d) double slash