Your friend shows you a new list of three five-digit numbers, again with only a few digits revealed:

2????

??9??

?????

It is possible for you to write a number you know for certain won't be on her list?

a) No because the second number has the third digit revealed instead of the second.

b)Yes because all I have to do is avoid 2 and 9 in my number.

c)Yes because the third number is totally unknown so any number works.

d)No because the third number has no digits visible.