quick Subnet question

in CCNA & CCENT
Ok, I'm taking a practice test and it says
"Which of the following represents the same idea as mask 255.255.240.0"
A. /22
B. /20
C. /18
D. /24
E. /16
I think I'm right and the test is wrong. lol
What is the answer.
"Which of the following represents the same idea as mask 255.255.240.0"
A. /22
B. /20
C. /18
D. /24
E. /16
I think I'm right and the test is wrong. lol
What is the answer.
Comments
Here is the pop up from the test.
2 games againts San Fran coming up, oh yeah baby, why even play? just put then in the win category and call it good
2 games againts San Fran coming up, oh yeah baby, why even play? just put then in the win category and call it good