This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: The Ovarian Cycle, Subject name: Gynaecology & Obstetrics
Ovulation can be evaluated by? 
Select and explain. 
A. Cervical mucous, B. Cervical colour, C. Cervical dilation, D. Cervical effacement
A: Cervical mucous
Answer: A: Cervical mucous 
Explanation: ANSWER: (A) Cervical mucousREF: Shaw 13th ed p. 213"Cervical mucus changes can be used to assess ovulation using the fern test"