Complete the pattern below with an answer from the five choices
The next planet is
The planet's numbers are $2,7,1,8$. These are the digits of $e$, and the next digit is $2$.
There is a small dot after the first venus. This represents the decimal point. Thanks @malioboro. I believe the small line after Neptune is simply the cursor on the word processor used to generate the image, and carries no significance to the answer.
Labelling Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, and Neptune as $1, 2, 3, 4, 5, 6,$ and $7$ respectively.
The pattern is second and second last coupled together $i.e., 2$ and $7$; First and last coupled together $i.e., 1$ and $8$, next would be 3 and 6 so the answer is $Earth.$