Just a hopefully quick clarification...

For a spell that has a range of (example) 4 meters (sphere)....

Is that in all directions around the center point or extended from the centered point? What constitutes the area of the sphere?

Example: Assume we're talking squares on a grid (feet or meters doesn't matter), and the center of the sphere is the caster... does the sphere...

Extend to "each adjacent square" around the caster (that would be, counting the center square, two squares in every direction)...

OR

Does the sphere extend two squares in every direction from the center?

I think it's the second option but wanted to verify.

Thanks!