Question 30946
The answers given in options A,B,C,D and E are of the form (X,Y)
So all you have to do is replace these options in the given question and see if they satisfy
for e.g. 
Option A is (1/2 ,- 3)

So substituting this in {{{y = 3^x}}}
{{{-3= 3^(1/2)}}}
which we know is not True
so Option A is not an answer

Check option B
{{{1/3 = 3^(-1)}}}
By Law of Indices {{{X^(-1) = 1/X}}}
So we get 
{{{1/3 = 1/3}}} which we know is True
So Option B is a definite answer

Can you check for the other options?