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 thirties (ages 30 to 39). What is the missing line of code?

customerAges = [33, 23, 11, 24, 35, 25, 35, 18, 1]

count30s = 0
for item in customerAges:
:
count30s = count30s + 1
print("Thirties:", count30s)

if 30 > item > 39

if 30 >= item >= 39

if 30 <= item <= 39

if 30 < item < 39