I, after work, went home.

O I, after work, went home.
O After work I goes home.
O After my works, I went to home.
O I go to home after works.
O Going home after work.

why correct answer to the question above is A and why the correct answer to the question below is B

I, with the aid of a telescope, saw Venus.

A. I, with the aid of a telescope, saw Venus.
B. I saw Venus with the aid of a telescope.