GIFT be considered under in vivo fertilization? Explain.

In GIFT, the sperm and eggs are just mixed together before being inserted and, with luck, one of the eggs will become fertilized inside the fallopian tubes. ... With GIFT, fertilization actually takes place in the body rather than in a petri dish. However, in vitro fertilization techniques have become more refined.

C. gemstones they are the only non metallic mineral from the list.