Question

Which of the following sets is non-empty?
(a) {x : x is a positive even integer and a prime}
(b) {x : x is a natural number and x < 5, x > 10}
(c) {x : x is a whole number and x < 0}
(d) {x : x is a natural number and x < 0}​

Answer 1

$\huge {\pink {ur\:Answer\:is\:option\:d}}$

option d

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