Assertion: Both `HCOOH (I)` and `CH_3 COOH (II)` give precipitate with aqueous `AgNO_3` solution soluble in `HNO_3`.
Reason: `HCOOH` gives positive Tollens test.
A. If both `(A)` are `( R)` are true and `( R)` is the correct explanation of `(A)`.
B. If both `(A)` and `( R)` are true but `( R)` is not the correct explanation of `(A)`.
C. If `(A)` is true but `( R)` is false.
D. If `(A)` is false but `( R)` is true.