How to asign to appear " & "and "quote" in HTML?

Question

& ""

Answer 1

& = &
"" = &quot or <q></q>

Answer 2

&amp
<q>quote</q> for short quote, and it seem they is also <quote>quote</quote>

Answer 3

Thank You very much You all.

Answer 4

&amp; for ampersand (&)
<q>a quote</q>