Assertion (A); ${\text{HSO}}_4^{-}$  is amphiprotic
Reason (R) : ${\text{HSO}}_4^{-}$  can donate as well as a accept proton  

A and R are true ‘R’ explains A
 

A and R are true ‘R’ does not explains A
 

Both are false

A is false ‘R’ is true