An instrument used to draw an angle:
(a). Scale
(b). Divider
(c). Protractor
(d). None of these

Hint: An angle is a measure of an inclination of a line with another line. Thus we have to find that instrument with the help of which we can draw a particular angle. To do this, we will check each option one by one.

Complete step-by-step answer:

Before finding which instrument is used to draw an angle, we must first know what an angle is. An angle is the figure formed by two rays, called the sides of the angle, sharing a common endpoint, called the vertex of the angle. In other words, we can say that an angle is a measure of inclination of a line with another line. So, in the question, we have to find the instrument with which we can draw a particular angle. Thus, we will check what each instrument given in the question does.
Option (a) Scale: A scale is an instrument which is either used to find the length of a line drawn or to draw a straight line of fixed length. It cannot be used to make angles.
Option (b) Divider: A divider is an instrument for measuring, transferring or marking off distances. It cannot be used to make angles.
Option (c) Protractor: A protractor is an instrument which is generally divided into 180 equal parts and it is used for measuring and making angles.
Hence, option (c) is correct.

Note: The protractor is used to draw a particular angle. The angle can also be formed by drawing two rays with the help of scale having common vertex. But the angle formed in this case will not be a particular angle.