Final answer:
Nathan needs to buy 5 inches of molding to finish his cabinet. Hence, A) is correct.
Step-by-step explanation:
To convert centimeters to inches, we can use the conversion factor 1 inch = 2.54 cm. So, to find the number of inches Nathan needs, we can divide the length in centimeters by the conversion factor:
- 12.7 cm ÷ 2.54 cm/in = 5 inches
Therefore, Nathan needs to buy 5 inches of molding to finish his cabinet.