C. Dying their hair
Choice A is incorrect because when someone is bored they may choose to dabble in drugs to give them something to do. B is incorrect because if someone likes to do dangerous things they would be more willing to partake in risky behaviors. D is incorrect because someone looking to escape reality would try drugs to achieve that.
<span>The menstrual cycle is complex and controlled by many different glands and the hormones that these glands produce.The four phases of the menstrual cycle are menstruation, the follicular phase, ovulation and the luteal phase.Common menstrual problems include heavy or painful periods and premenstrual syndrome (PMS).<span>Knowing when in the menstrual cycle a woman is most likely to conceive can increase the chance of pregnancy.</span></span>
