Final answer:
The correct answer is a) //. The double divide operator (//) is used in Python to output the quotient of dividing two numbers.
Step-by-step explanation:
The correct answer is a) //. The double divide operator (//) is used in Python to output the quotient of dividing two numbers. In this case, 100 divided by 42 would be 2.38. Therefore, the correct way to output the quotient is 100 // 42.