Which of the following commands indicates to soldiers to count off from front to rear?

The command "From front to rear, count off" is specifically designed to instruct soldiers to count in a sequential manner from the front of the formation to the back. This command ensures that each soldier identifies their position in a clear and organized manner, facilitating accountability and proper formation integrity.

When soldiers respond to this command, they typically articulate their numbers in ascending order as they are positioned, which enhances communication within the ranks. This process is particularly useful during formations, inspections, or when organizing troops for various activities.

The other commands refer to different formations and movements. For example, "Arms downward, move" pertains to the position of the arms in a specific drill movement, while "Extend to the left, March" tells soldiers to adjust their formation laterally. The command "Even numbers to the left, uncover" directs soldiers to identify and uncover individuals based on an even-numbered system, which does not involve counting off in a linear fashion. Thus, the clarity and purpose behind "From front to rear, count off" makes it the correct answer in this context.