Ovulation is a phase of the menstrual cycle that occurs on day 14 of the menstrual cycle. This means the evolution occurs in the middle of the menstrual cycle that lasts 28 days and due to this, it occurs14 days after the first day of menstruation and 14 before the beginning of next menstruation. In this phase, the ovule or egg completes its maturation and is transferred to the uterus through the fallopian tubes. Additionally, the uterus is covered and prepared for a pregnancy, this makes the woman be in the most fertile phase to get pregnant; also this phase accompanied by high hormonal levels. So, the correct answer is D. 14
Given that water is clear and colorless, it seems that it will absorb very little direct radiation from the sun. The sides and the bottom of the pool can however heat it by conduction.