Which of the following is an element in the sample space for forest tossing a coin and then rolling a number cube

A - T, H

B - 4,6

C - H, 8

D-T, 4

The first part has to be either Heads or Tails

The second part can be any number on a normal dice which is 1 through 6.

A is wrong because it has nothing about the dice.

B is wrong because it has nothing about the coin toss.

C is wrong because 8 is not a number on a normal dice.

Therefore, D is your answer since it has a result from a coin toss and then a result from rolling a dice.