Convert 4 feet into inches.

To convert feet into inches, it's important to know the relationship between these two units of measurement. One foot is equal to 12 inches.

To find out how many inches are in 4 feet, you multiply the number of feet by the number of inches per foot:

4 feet × 12 inches/foot = 48 inches.

Therefore, when converting 4 feet into inches, the correct answer is 48 inches. This means option C accurately reflects the conversion from feet to inches.