Read each sentence to find out whether there is any grammatical or idiomatic error in it. The error, if any, will be in one part of the sentence. The corresponding letter of that part is the answer. If the given sentence is correct as it is, then choose option ‘No error’ as your answer response. (Ignore errors of punctuation, if any).

If I was the manager, (A)/ I would have increased (B)/ the budget for (C)/ employee training programs. (D)

Correct option is A

Part (A) contains an error. The correct form for the subjunctive mood, which is used for hypothetical situations, is "If I were" instead of "If I was."
The correct sentence should be: "If I were the manager, I would have increased the budget for employee training programs."
Rule: Use "were" instead of "was" in the subjunctive mood to express hypothetical or non-real situations.