Write the Set by Listing Its Elements $\{\mathrm{p} \mid \mathrm{p}$ Is an Irrational Number That Is Also Rational

Multiple Choice

Write the set by listing its elements.
- $\{\mathrm{p} \mid \mathrm{p}$ is an irrational number that is also rational $\}$

A) $\varnothing$
B) $\{1\}$
C) $\{0\}$
D) $\{-1\}$