Who among the following has/have been awarded the '2019 Nobel Prize for Physiology or Medicine'?1.William G Kaelin Jr.2.Gregg L Semenza3.Peter J Ratcliffe

Who among the following has/have been awarded the '2019 Nobel Prize fo

1.	Who among the following has/have been awarded the '2019 Nobel Prize for Physiology or Medicine'?1.William G Kaelin Jr.2.Gregg L Semenza3.Peter J Ratcliffe
A.	Only 1
B.	Only 2
C.	Only 1 and 2
D.	Only 1 and 3
E.	All of the above
Answer» F.