E5 X C5 ❗
No matter what people say, 1...e5 has always been the MOST SOUND response to 1.e4. It may not score the highest or be the most exciting, but Black's initial goal is to not die as he is on defense.
A lot depends on your tolerance for risk. The numbers I give below are not actual, but they illustrate the point.
Would you rather lose 20% of your games, but only win 17% of your games?
Or would you rather lose 40% of your games but win 38% of your games?
The former type of player should play 1...e5. The risk taker willing to lose a lot, but also having better winning chances, should play 1...c5.