Answer:
d. 99
Explanation:
Hi ! Our task is to find the greatest two-digit number.
I'll suggest checking each and every option.
Is 11 the greatest two-digit number? Noo, because there are many more that are way larger than 11. What about 33? What about 72? So, option A can't be correct.
90 is close, but there's still a few numbers that are greater than 90.
The largest one is 99. Why? Because the next number after it is 100, which has 3 digits.
Therefore, 99 is the largest two-digit number.