Whereas scientists, because of random fluctuations in the weather, cannot determine the transition from one season to the next by monitoring temperatures on a daily basis, so they cannot determine the onset of global warmings by monitoring average annual temperatures.
a) Whereas scientists
b) Just as scientists
c) Like scientists who
d) Inasmuch as a scientist
e) In the same way a scientist
"Just as..so" idiom
B is my anwer.
Also, we are comparing actions, hence we should use "as"
The path is long, but self-surrender makes it short;
the way is difficult, but perfect trust makes it easy.