A restaurant recorded the ages of customers on two separate days. You are going to write a program to compare the number of customers in their teens (ages 13 to 19). What is the missing line of code to count the number of customers in their teens?

customerAges = [13, 3, 11, 24, 35, 25, 15, 18, 1]
countTeens = 0
for item in customerAges:
:
countTeens = countTeens + 1

if 13 <= item <= 19

if 13 < item < 19

if 13 <= item[0] <= 19

if 13 < item[0] < 19