what is the hundredths digit of the decimal of Z?

a) the tenths digit of 100z is 2.
b) the units digits of 1,000z is 2.

OA is E..why not B?

Lets say 0.ABCD is the decimal..then 1000*0.ABCD=ABC.D option B tells units digit is 2 = C which is hundredths digit of decimal Z. Please help!