Correct option is A
Concepts like more-less, long-short, far-near, big-small, etc., are indeed important pre-number concepts. These concepts lay the foundation for understanding quantitative relationships and mathematical comparisons. Before children can grasp numerical values or engage in arithmetic operations, they need to comprehend these basic relative terms. These concepts help develop a child's spatial awareness, ability to compare quantities, and establish a fundamental understanding of mathematical relationships. Therefore, they are crucial as precursors to formal mathematical learning and problem-solving, making option (a) the correct choice.