The degrees in the Celsius scale are the same size as the 
degrees in the Kelvin scale, which has 0 as absolute zero.

So the correct choice is B.

-------------------------------------

If the question had been

"One degree Rankin indicates the same temperature change as"  

the answer would have been A since the degrees in the Fahrenheit 
scale are the same size as the degrees in the Rankin scale which 
has 0 as absolute zero.

If choice C had been "9/5 degree Fahrenheit" instead of "5/9", it 
would have been just as correct a choice as B

If choice D has been "9/5 degree Rankin" instead of "Kelvin", it
too would have been just as correct a choice as B.

Edwin