Correct option is D
Both Assertion (A) and Reason (R) are false.
Assertion (A) states that mistakes and errors made by students indicate the failure of both teachers and students. However, this assertion is too generalized and doesn't take into account various factors that can contribute to mistakes and errors, such as individual learning styles, external distractions, or the complexity of the material being taught. Mistakes and errors are a natural part of the learning process, and they can occur even when both teachers and students are performing well.
Reason (R) claims that children do not have the ability to think on their own and need constant instruction for learning. This reason is incorrect and contradicts our understanding of child development and education. Children have the capacity to think independently and learn through exploration, problem-solving, and critical thinking. While guidance and instruction from teachers are important, fostering independent thinking and self-directed learning is also crucial for a student's development.