NEET Biology question

Select the option that correctly fills up the blanks in the given paragraph. After one month of pregnancy, the embryo's (i) is formed. By the end of the (ii) month of pregnancy, the fetus develops limbs and digits. By the end of (iii), most of the major organ systems are formed. By the end of (iv), the body is covered with fine hair, the eye-lids separate, and the eyelashes are formed.

• (A)(i)-heart, (ii)-second, (iii)-first trimester, (iv)-second trimesterCorrect
• (B)(i)-heart, (ii)-second, (iii)-first month, (iv)-second trimester
• (C)(i)-heart, (ii)-second, (iii)-first week, (iv)-second week
• (D)(i)-heart, (ii)-fourth, (iii)-first trimester, (iv)-second month