What is the best estimate of the number of centimeters (cm) in 1 yard? (Note: 1 yard = 3 feet; 1 foot = 12 inches; 1 inch = 2.54 cm)

To convert 1 yard to centimeters, we need to follow the conversion steps provided: 1 yard = 3 feet, 1 foot = 12 inches, and 1 inch = 2.54 cm. Therefore, 1 yard = 3 feet = 36 inches = 36 * 2.54 cm = 90 cm. Thus, the correct answer is D, which is 90 cm. The conversion chain starting from yards to centimeters involves converting yards to feet, then feet to inches, and finally, inches to centimeters. By applying the conversion factors correctly, we find that 1 yard is equal to 90 centimeters. Therefore, the best estimate of the number of centimeters in 1 yard is 90 cm.