Correct option is D
Ans. (d) HCG
Sol. Human Chorionic Gonadotropin (HCG) is produced by the placenta shortly after implantation. It is the hormone detected by most pregnancy tests.
Explanation of each option:
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(a) LH – Luteinizing Hormone triggers ovulation but doesn't confirm pregnancy.
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(b) FSH – Stimulates follicle development in ovaries; unrelated to pregnancy detection.
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(c) TSH – Thyroid Stimulating Hormone regulates the thyroid gland, not linked with pregnancy confirmation.
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(d) HCG –
Correct. Presence in blood/urine confirms pregnancy.