The number of values of where the function attains its maximum is
Explanation for correct option
The maximum value of
We know that the range of is
attains its maximum at
That is
Clearly at
Since is irrational number so for any other value of , cannot become
So cannot attain its maximum at any point other than
So which occurs at .
Also there is no other value of for which it will attain maximum again
Hence, option (B) is correct