The first sign of growing human foetus in uterus may be noticed by

Options

A. Listening heart sound
B. Movement of fortus
C. Development of limbs and digits
D. None of these

Answer

To determine the first sign of a growing human fetus in the uterus, we can analyze the options provided:

1. **Listening to heart sound**: The fetal heart begins to develop early in the gestation period, typically around the fifth week. By this time, it is possible to detect the heartbeat using a Doppler device or ultrasound. This is often one of the earliest signs of fetal development.

2. **Movement of fetus**: Fetal movements, known as "quickening," usually occur later in the pregnancy, around the 16th to 25th week. Therefore, this is not the first sign.

3. **Development of limbs and digits**: Limb and digit formation occurs during the embryonic stage, but these structures are not fully developed or noticeable until later in the pregnancy.

4. **None of this**: This option suggests that none of the previous options are correct, which is not the case here.

Based on this analysis, the first sign of a growing human fetus in the uterus is best indicated by **listening to the heart sound**.

**Final Answer**: Option A - Listening to heart sound.

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