Final answer:
The trick in question is known as a 360 Inward Double Heelflip, a skateboarding move where the board spins 360 degrees with a double flip.
Step-by-step explanation:
The trick involving a 360 Inward Double Heelflip or 360 Inward Double Heel is known as option 1) 360 Inward Double Heelflip. In skateboarding terminology, this trick consists of a skateboard rotating 360 degrees in the inward heelflip direction with a double flip. The naming convention considers both the direction of the board's spin (inward heelflip) and the number of flips (double) it completes before the skateboarder lands back on the board.