Maximum number of equivalence relations on set $A = \{1, 2, 3, 4\}$ is $N$, then -
Maximum number of equivalence relations on set $A = \{1, 2, 3, 4\}$ is $N$, then -
- A
$14 \leq N \leq 20$
- B
$21 \leq N \leq 28$
- C
$29 \leq N \leq 36$
- D
$N \geq 37$
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