Consider the sets below.

$U=\{x \mid x$ is a real number $\}$

$A=\{x \mid x$ is an odd integer $\}$

$R=\{x \mid x=3,7,11,27\}$



Is $R \subset A$ ?

Ayes, because all the elements of $\operatorname{set} A$ are in set $R$

Byes, because all the elements of set $R$ are in set $A$

Cno, because each element in set $A$ is not represented in set $R$

Dno, because each element in set $R$ is not represented in set $A$