From the given statements:
A. All photons in white light have same energy and momentum
B. When intensity of light increases the number of photons incident per second per unit area increases.
C. Photons are deflected by negative terminal of battery
D. Photoelectric (saturation) current increases with increase in the frequency of radiation
Choose the correct answer from the options given below:

Apply the relevant identity from the chapter and substitute the values established in the previous step, keeping the original constraint in view.

Use the simplified expression to isolate the unknown, then plug the result back into the question setup to confirm the working is internally consistent.

Cross-check against a boundary or limiting case. Both the dimensional balance and the qualitative behaviour at the extreme should agree with the candidate answer.

Combine the steps above to identify the correct option. The remaining choices each fail at least one of the consistency, dimensional, or boundary checks.