9. (10 points) We define a five-digit number like 31024, 98567 as a "magic number". A "magic number" is one where the middle digit is the smallest, and the digits increase from the middle to both sides, with all digits being unique. Therefore, the number of such five-digit numbers is ( ).
A. 1512
B. 3024
C. 1510
D. 3020
【Solution】Solution: Any 5 numbers chosen from $0 \sim 9$ can form a "Pegasus number", $C_{10}^{5}=\frac{10 \times 9 \times 8 \times 7 \times 6}{5 \times 4 \times 3 \times 2 \times 1}$ $=252$ (ways);

Among the 5 selected numbers, the smallest is placed in the middle, and the remaining 4 numbers are combined, from which any 2 can be chosen to be placed on the left or right, $C_{4}^{2}=6$ (ways);

It is important to note here: Selecting any 2 out of the 4 numbers to place on the left and then on the right changes the order of the numbers.
Therefore, there are a total of “Pegasus numbers” $252 \times 6=1512$ (numbers).
So the answer is: $A$.