Which number line shows the numbers −0.7, 0, and 1 4
plotted correctly?

A number line going from negative 1 to positive 1 in increments of 1. There are 2 equal spaces between each number. Points are between negative 1 and the first mark to the right of negative 1, at 0, and half-way between 0 and 1.
A number line going from negative 1 to positive 1 in increments of 1. There are 2 equal spaces between each number. Points are between negative 1 and the first mark, at 0, and half-way between 0 and the first mark to the right of 0.
A number line going from negative 1 to positive 1 in increments of 1. There are 2 equal spaces between each number. Points are half-way between the mark to the right of negative 1 and 0, at 0, and half-way between the mark to the right of 0 and 1.