Which of these is a Private IP address, as defined in RFC $1918?$

Question options:

$172\mathrm{.}1\mathrm{.}1\mathrm{.}1$

$172\mathrm{.}14\mathrm{.}15\mathrm{.}16$

$172\mathrm{.}28\mathrm{.}29\mathrm{.}30$

$172\mathrm{.}33\mathrm{.}34\mathrm{.}35$

All of these

None of these