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A new birth control method for men known...

A new birth control method for men known as RISUG for Reversible Inhibition of Sperm Under Guidance is under testing. The procedure involves injection of a nontoxic polymer inside of the vas deferens. The polymer forms a coating on the inner lining of vas deferens. As sperms pass through, they are chemically disabled by the polymer. Hence, there is ejaculation but the sperms are incapable of fertilising the egg. At any stage if needed, the polymer film can be dissolved and removed using specific injections.
At which of these points would the polymer be injected?

A

P

B

Q

C

R

D

S

Text Solution

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The correct Answer is:
B
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