Correct Answer: Option B

Explanation

Amplexus defines the mating position of frogs and toads, in which the male clasps the female about the back.

Amplexus is a type of mating behavior exhibited by some externally fertilizing species in which a male grasps a female with his front legs as part of the mating process, and at the same time or with some time delay, he fertilizes the eggs as they are released from the female's body.

"Mating" refers to the general act of sexual reproduction between two organisms, while "amplexus" is a specific mating posture used by frogs where the male clasps onto the female's back, aligning their cloacae to facilitate external fertilization; essentially, amplexus is a type of mating behavior unique to frogs, focused on positioning for egg fertilization, rather than the broader term of mating itself. 

There is an explanation video available below.

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