The number of elements in Ca(OH)2 is x and that in NaOH is y. Choose the correct option regarding x and y.
Regarding X and Y the correct statements are
A. Both X and Y are transitional elements
B. Atomic size of Y < Atomic size of X
C. Y is also catalyst in Sabatier - Senderen's reaction
D. X is also a catalyst in dehydrogenation of alcohols