Hector drew the diagram below to illustrate projectile motion.

how should hector correct his diagram?

he should switch the labels “gravity” and “inertia.”
he should make the arrow for “path” curve downward.
he should switch the labels “inertia” and “path.”
he should make the arrow for “inertia” curve downward.

Let us review the answers given.
1. He should switch the labels "Gravity" and "Inertia".
   These labels are correct, so no change is required.

2. He should make the arrow for "Path" curve downward.
   This statement is correct.

3. He should switch the labels "Inertia" and "Path".   
   No change is required.

4. He should make the arrow for "Inertia" curve downward.
    This statement is incorrect.

Hector should make the arrow for "Path" curve downward as shown in the figure.

It is d, all the other ones say incorrect answer .