Ans. is 'b' i.e., Epidural block o When complete relief ofpain is needed throughout labour, epidural analgesia is the safest and simplest method.o For Vaginal delivery - a complete block from T10 to S5For Caesarian section - a complete block from T4 to SI is needed.o Paracervical nerve blockUsed for pain relief during first stage of labour.o Pudendal nerve block:Does not relieve pain of labour but produces perineal analgesia and relaxation and is mostly used for forceps and vaginal breech delivery).