Carboprost, used for 2' trimester aboion, is analogue of ?

Ans. is 'b' i.e., PGF2aCarboprost is a synthetic prostaglandin analogue of PGF2a (specifically, it is 15-methyl-PGF2a) with oxytocic propeies.Carboprost induces contractions and can trigger aboion in early pregnancy. It also reduces postpaum bleeding.