Evaluating Assertion (A): Motor Development Timing

Assertion (A) states that motor development for children occurs from the age of five years. This statement is inaccurate.

• Motor development is a continuous process that begins in infancy and progresses throughout childhood.
• Fundamental motor skills like crawling, walking, running, and jumping develop well before the age of five.
• Therefore, stating that motor development occurs *from* age five incorrectly ignores the significant development that happens in early childhood.

Assertion (A) is false.

Evaluating Reason (R): Girls' Leg Strength vs Boys'

Reason (R) claims that girls' leg strength is higher than that of boys up to the age of eleven years. This statement is generally considered true based on developmental research.

• In pre-pubertal stages (typically up to age 11 or slightly later), girls often exhibit comparable or slightly superior leg strength relative to their body size compared to boys.
• This pattern changes during puberty, where boys typically experience greater muscle mass development and surpass girls in leg strength.

Reason (R) is true.

Conclusion

Based on the analysis:

• Assertion (A) is false.
• Reason (R) is true.

This corresponds to the option where (A) is false and (R) is true.