In cases of postpartum hemorrhage (PPH), ____________ is typically the first agent used. _______________ and ____________ are typically used in cases of bleeding after oxytocin use.

a) Methergine; Oxytocin and Misoprostol
b) Oxytocin; Methergine and Misoprostol
c) Carboprost; Oxytocin and Tranexamic acid
d) Misoprostol; Oxytocin and Carboprost