An earthquake has just occurred. seismic waves from the earthquake are detected at two recording stations. at recording station a, t = 45 s. at recording station b, t = 100 s. which recording station is farther away from the epicenter?

Answer is: Recording Station B is farther from the epicenter than Recording Station A.
The distance between the beginning of the first P (pressure wave) and S wave (secondary waves), shows how many seconds the waves are apart.
This number is used to tell how far seismograph is from the epicenter of the earthquake.

The answer to this question is b

The answer i think is d