If a,b,c, d are distinct even integers and a is prime, is the four digit number abcd divisible by 8?

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If a,b,c, d are distinct even integers and a is prime, is the four digit number abcd divisible by 8?

(1) The two digit number ba is a multiple of 21 and 40 is a factor of the two digit number cd.
(2) 10 is a divisor of the two digit number bc and the product of ad is a perfect square.


OA D

Source: Princeton Review