Final answer:
The number of arrangements of the 13 students in a single-file line is calculated using permutations, resulting in 6227020800 possible arrangements.
Step-by-step explanation:
To determine how many different arrangements of the 13 students are possible in a single-file line, we need to calculate the number of permutations of 13 distinct objects. This is a straightforward application of the formula for permutations:
P(n) = n!, where n is the number of objects to arrange and n! denotes the factorial of n.
For 13 students, the calculation is:
13! = 13 × 12 × 11 × 10 × ... × 3 × 2 × 1
= 6227020800 possible arrangements.
Thus, the correct answer is D) 6227020800.