Read the following statements and choose the correct option:

Assertion (A): Learners acquire languages since they are genetically predisposed to do so and the environment does not play any role in it.

Reason (R): The learner-centered classroom environment has a great impact on language acquisition.

Let us analyze the given Assertion (A) and Reason (R) step-by-step:

1. Analysis of Assertion (A):
Assertion (A) states: "Learners acquire languages since they are genetically predisposed to do so and the environment does not play any role in it."
While modern linguistics (such as Noam Chomsky's theory of Universal Grammar) suggests that human beings are genetically predisposed or have an innate capacity to acquire language, the statement goes on to claim that "the environment does not play any role in it." This claim is incorrect. Language acquisition cannot happen in a vacuum; input from the environment, social interaction, and exposure to language are absolutely essential for a child to learn and develop a language. Therefore, Assertion (A) is false.

2. Analysis of Reason (R):
Reason (R) states: "The learner-centered classroom environment has a great impact on language acquisition."
A learner-centered classroom focuses on the needs, interests, and active participation of the learners. Such an interactive and supportive environment provides rich input and opportunities for communication, which significantly facilitates and impacts language acquisition positively. Therefore, Reason (R) is true.

Conclusion:
Since Assertion (A) is false and Reason (R) is true, the correct choice is: "(A) is false, but (R) is true."