I now had 2 middle pair and a flush draw . The player in earlier position bet $ 50 into the $ 65 pot . I pushed all in .

Choices: [i] The pot was now at $ 65 dollars and he wanted it to grow .. [ii] He was in a low position and wanted to gain ground .. [iii] He knew how to draw very well and he thought he could get top dollar .. [iv] The cards he drew were very favorable to win ..
Answer the following question: Why did the person bet all his money ?
[iv]