Question

$\left\{\text{months of a year whose names begin with the letter F}\right\}$ is

• A. an infinite set
• B. empty set
• C. singleton set
• D. none of these

Answer 1

Answer: (C)

singleton set

$LetA=\left\{\text{months of a year whose name begin with the letter F}\right\}$
$\Rightarrow A=\left\{February\right\}$
$\therefore$ It is a singleton set.