Answer:
I think the answer would be D.
Explanation:
Maria would want to test her hypothesis with another experiment; the type listed in answer D.
In meiosis? Tetrads maby? When two homologus chromosomes do crossing over they're called tetrads so..
It is in vitro fertilization (IVF).
IVF is a type of assisted reproductive technology used for infertility treatment. It includes the steps like removing an ovum from the woman's ovaries, fertilisation (sperm cell from is injected using a microscopic needle, directly into each harvested ovum from the woman) outside the body, embryo transfer to the same or another woman's uterus after a few days.