Question

which of the following is a mass within the ovary that secretes hor
oviduct
oocyte
umbilical cord
corpus luteum

Explanation:

The corpus luteum is a mass in the ovary that forms after ovulation. It secretes hormones like progesterone and estrogen. The oviduct (fallopian tube) is for transporting the oocyte. An oocyte is an immature egg cell. The umbilical cord is part of the fetal - maternal connection during pregnancy, not in the ovary.

Answer:

Corpus luteum