Answer: B. to provide evidence that the age of discovery is concluding
Explanation: in the given statement the author says that with the discoveries regarding the quantum, the DNA and computers, the basic (and most necessary) laws of matter (quantum), life (DNA) and computation (computers) are already solved, so according to this infromation, we can see that the author's purpuse in this statement is to provide evidence (examples) that the age of discovery is conluding.
It isn't certain, but since the strap was usually made of goat-skin, it could have been a symbol of fertility. By striking the women (often on the wrists) with it, it was said to ensure fertility, easy childbirth, and good health for them.
