Answer:
e) C3H6
Step-by-step explanation:
Option e, C3H6, cannot be an empirical formula since you can simplify the subscripts of each element by dividing both the 3 and 6 by 3.
When doing so, you will be left with CH2 since the 3 on carbon will be reduced to 1 and the 6 on hydrogen will be reduced to 2.
For all other options, you cannot divide by a common factor that leaves you with a whole number.
Therefore, C3H6 to CH2 is the only option.