Which of the following random variables is geometric?

A.)The number of 3s when rolling a die 10 times

B.)The number of heart cards obtained in a seven-card deal-out of a shuffled deck of 52 cards

C.)The number of heads when a coin is tossed 25 times

D.)The number of 5s in a row of 50 random digits

E.)The number of digits in a randomly selected row until a 4 is found