Read the following and choose the correct option.

Assertion (A) : Science textbooks should include biographies of scientists.

Reasoning (R) : Narrating biographies of great scientists inspires students to learn how scientists make discoveries by following a universal scientific method.

The correct option is (A) is true but (R) is false.

Step 1: Evaluate Assertion (A)
Assertion (A) states that science textbooks should include biographies of scientists. This statement is true. Including biographies in science education helps humanize the discipline, showing students that scientific discoveries stem from human curiosity, perseverance, and creative problem-solving rather than just static facts in a textbook.

Step 2: Evaluate Reasoning (R)
Reasoning (R) states that biographies inspire students by showing how scientists make discoveries by following a "universal scientific method." This statement is false. In modern pedagogical understanding and history of science, it is widely recognized that there is no single, rigid, or universal scientific method. Scientists utilize a wide variety of approaches, including trial-and-error, observational studies, collaborative inquiry, theoretical modeling, and even accidental (serendipitous) discoveries.

Conclusion:
Since Assertion (A) is a valid educational principle while Reasoning (R) relies on the misconception of a "universal scientific method," Assertion (A) is true but Reasoning (R) is false.