Choose the correct replacement of the underlined portion of the sentence 'If I would have known about the traffic jam at the bridge, I would have taken the alternate route'.

Choose the correct replacement of the underlined portion of the sentence 'If I would have known about the traffic jam at the bridge, I would have taken the alternate route'.

• ক. If I would have known about
• খ. If I could of known about
• গ. If I was aware of
• ঘ. Had I known about