Final answer:
The correct answer is C) Yards and feet, which are among the main units of length used in the U.S. customary system of measurement. Inches, feet, yards, and miles are all part of this system, with specific conversions like 12 inches in 1 foot, 3 feet in 1 yard, and 5,280 feet in 1 mile.
Step-by-step explanation:
The main units of length in the U.S. are inches, feet, yards, and miles. Among the options provided, the correct answer would be C) Yards and feet. A foot is a customary unit of measurement in the U.S., and there are 12 inches in 1 foot. Additionally, there are 3 feet in 1 yard, and 5,280 feet in 1 mile. The customary system is commonly used in the United States for various measurements, where units of length include inches, feet, yards, and miles.
Inches are used for smaller measurements, while feet are often used for measuring the height or length of objects that are not excessively long. Yards are used for larger distances, such as fields, and miles are used for measuring the distances between locations.