There are two statements marked as Assertion (A) and Reason (R). Mark your answer as per the options given below.

Assertion: Pie charts usually are drawn with absolute values of a category.
Reasoning: A circle in a pie chart, irrespective of its value of radius, is thought of having 100 equal parts of 3.6° (360°/100) each. 

Assertion (A) is not true but Reasoning (R) is correct.

The correct answer is Option 4: Assertion (A) is not true but Reasoning (R) is correct.

Assertion: Pie charts usually are drawn with absolute values of a category. This is incorrect.
Reasoning: A circle in a pie chart, irrespective of its value of radius, is thought of having 100 equal parts of 3.6° (360°/100) each. This is correct.

"A pie diagram is also a component diagram, but unlike a bar diagram, here it is a circle whose area is proportionally divided among the components it represents. It is also called a pie chart. The circle is divided into as many parts as there are components by drawing straight lines from the centre to the circumference. Pie charts usually are not drawn with absolute values of a category (Assertion is incorrect). The values of each category are first expressed as percentage of the total value of all the categories. A circle in a pie chart, irrespective of its value of radius, is thought of having 100 equal parts of 3.6° (360°/100) each (Reasoning is correct). To find out the angle, the component shall subtend at the centre of the circle, each percentage figure of every component is multiplied by 3.6°.