Question:

Which of these developments occurs during the 1\({}^{st}\) trimester of pregnancy?
(A). Arms, hands, fingers, feet, toes are formed.
(B). Baby's movements can be easily felt by the mother.
(C). Foetus can open and close mouth and fists.
(D). The CNS is developing, working of the excretory and circulatory systems begins.
Choose the correct answer from the options given below:

Show Hint

Movements felt easily by the mother occur in the second trimester, not the first.
Updated On: Nov 12, 2026
  • (A), (B) and (D) only.
  • (A), (B) and (C) only.
  • (A), (B), (C) and (D).
  • (A), (C) and (D) only.
Show Solution
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The Correct Option is D

Solution and Explanation

Step 1: Understanding the Concept
The first trimester covers about the first 12 weeks, when most organs are formed.

Step 2: Check each point
(A) is true: limbs, fingers and toes form by about the end of the second month.
(C) is true: by the end of the first trimester the foetus can open and close its mouth and fists.
(D) is true: the CNS develops, and the excretory and circulatory systems begin to work.
(B) is false: the mother clearly feels movements around the fifth month, in the second trimester.

Step 3: Select the option
Statements (A), (C) and (D) are correct, which is option (D).

Final Answer:
Statements (A), (C) and (D) only occur in the first trimester. \[ \boxed{\text{(D) }\text{(A), (C) and (D) only.}} \]
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