Question

Regular aerobic exercise gives an individual more endurance is a sentence that shows cause and effect. Which word indicates the cause?
a. Individual
b. Exercise
c. Endurance
d. Regular

Answer 1

b. Exercise



If we conduct a research investigation in these given situation. More specifically, an experiment this would suggest a most probable scenario of a cause and effect situation or technically called causality. 

Here the Independent variable is the exercise 
The dependent variable is the endurance.

Hence regular EXERCISE increases endurance. 

Answer 2

The correct answer will be (B) exercise

It helps you see that it is the cause and effect in the sentence.

I hope this helps.