Which Ietter is an insect

Which Ietter is an insect Which letter is an insect Which letter is an insect? Which letter is an insect?智力测试 谜语:1.Which letter is an insect ( ) What letter is an insect? which letter is an insect?A,A B,B C,C D,D Which lettre is an insect?A.T B.P C.S D.B what is smaller than an insect what is smaller than an insect'month What letter is an insect?It's_____. what letter is an insect?It's?