The teacher instructed the students to draw the marginal lines.

central
fractional
global
angular

The correct answer is: A. central

Marginal lines are lines that run parallel to the edges of a page. They are used to separate text into columns or to create margins.

Central lines are lines that run through the center of a page. They are used to divide a page into two equal parts.

Fractional lines are lines that are used to divide a page into fractions.

Global lines are lines that run around the entire page. They are used to create a border around a page.

Angular lines are lines that are used to create angles.

In the question, the teacher instructed the students to draw the marginal lines. This means that the students were asked to draw lines that run parallel to the edges of the page. The answer is therefore A.