What does the lack of S waves from earthquakes tell scientists about what is inside earth?

A. There must be a solid
B. There must be a gas
C. There must be a liquid
HELP ME PLZ ILL MARK U BRAINLIEST

for step 7 table c on the lab "newtons law of action"   the average time it took the car to travel .25 meters   was 1.92 seconds.

the average time it took the car to travel 0.50 meters was 2.61 seconds

hope this : )