Direction.
In the following sentences, four options are given. You are required to identify the best way of writing the sentence in the context of the correct usage of standard written English. While doing so, you have to ensure that the message being conveyed remains the same in all the cases.
Had he realised how close he was to failing, he would not have gone to the party.
If he would have realised how close he was to failing, he would not have gone to the party.
Had he had realised how close he was to failing, he would not have gone to the party.
When he realized how close he was to failing, he did not go to the party.
A. Had he realised how close he was to failing, he would not have gone to the party.