Which of the following is a correct statement? [NEET OD 2019]

(A)IUDs once inserted need not be replaced.
(B)IUDs are generally inserted by the user herself
(C)IUDs increase phagocytosis of sperms in the uterus.
(D)IUDs suppress gametogenesis.

The NCERT line that answers it

Verbatim line

IUDs increase phagocytosis of sperms within the uterus and the Cu ions released suppress sperm motility and the fertilising capacity of sperms.

Chapter: Reproductive Health
Section: 3.2 POPULATION STABILISATION AND BIRTH CONTROL
Page: 3
Words matched: 22 of 22

The answer appears as a continuous sentence in NCERT. This is that sentence.

How this line gives the answer

0, emb=1.0, combined=1.0). Verified: high — The span explicitly states 'IUDs increase phagocytosis of sperms within the uterus', which is the exact biological fact that makes option C correct.

We did this for 1,565 questions.

Every one traced to the exact sentence in NCERT that answers it, including 90% of the 2026 paper. Sit a mock on the real NEET 2027 computer interface and every mark you drop comes back with its line attached.

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Question text is reproduced from the published NEET 2019 paper for study and commentary. NCERT text is quoted, not redistributed; textbooks remain at ncert.nic.in. Our mapping method, including its measured error rates, is published at /methodology.