Option A: “see” refers to the ability of looking. When used, the sentence would mean, “I am able to look at the president from where I am”, which is meaningful. Hence, this is the correct option.
Option B: “sea” refers to the body of water surrounding the continents. This is of no relevance in the given sentence. Hence, this option is incorrect.
Option C: “cea” is not a word in the English language. Hence, this option is incorrect.
Option D: “sie” is not a word in the English language. Hence, this option is incorrect.