Which of the following are premonitory signs of labor?

Choice A rationaleCervical dilation and effacement indicate the body is preparing for labor by allowing the cervix to open and thin out for childbirth.Choice B rationaleSwelling of the feet and ankles is common in pregnancy due to increased fluid retention but is not a specific sign of imminent labor.Choice C rationaleThe nesting instinct, a burst of energy and urge to prepare the home, often occurs as labor approaches, driven by hormonal changes.Choice D rationaleIncrease in maternal blood pressure may indicate preeclampsia, a pregnancy complication, but not a premonitory sign of labor.Choice E rationaleBloody show involves the discharge of mucus with blood from the cervix, signaling that labor is likely to begin soon.Choice F rationaleIncrease in Braxton Hicks contractions, or practice contractions, helps the uterus prepare for true labor by strengthening muscles.