Please answer the following question by reasoning step-by-step.
What species of female mammal lacks a uterus and vagina?\nOptions:\n- (A) fallopian tubes\n- (B) echidna\n- (C) live birth\n- (D) lays eggs\n- (E) cows\n- (F) tortoises\n- (G) alpacas\n- (H) goats

(B)
Female monotremes lack a uterus and vagina.

Examples of monotremes are the Platypus and Echidna.

Platypus and echidna lack a uterus and vagina.

.

So, the final answer is (B)