Concept:
This question tests the ability to distinguish between two factually correct statements that share no logical connection.
Step 1: Evaluating Statement A (Science/Optics).
The assertion is a factually correct statement about optics. A lens (like those in cameras or projectors used in theatre) can indeed magnify or reduce the visual size of an object.
Step 2: Evaluating Statement R (Theatre Theory).
The reason is also a factually correct statement. Bertolt Brecht did indeed propound the concept of the Alienation Effect (Verfremdungseffekt).
Step 3: Checking for a logical link.
While both statements are true, the fact that Brecht created the Alienation concept has absolutely nothing to do with how a physical glass lens functions. Therefore, (R) is not the explanation of (A).