None of them is "wrong", nor really "different" in meaning, but 1(c) and 2(a) are the preferred expressions (in AmE).
I can't explain why. But here is some confirmation.
None of them is "wrong", nor really "different" in meaning, but 1(c) and 2(a) are the preferred expressions (in AmE).
I can't explain why. But here is some confirmation.