Pudendal nerve block ?
Ans. is 'b' i.e., S2-4 Pudendal Nerve Block It is a peripheral nerve block that provides local anesthesia over S 2-4 dermatomes (majority of perineum and inferior quaer of vagina) It does not block the superior bih canal so the mother is able to feel the uterine contractions.
S1-3
S2-4
S3-5
S4,5