It wasn't for a lack of effort they didn't finish the job, they just didn't have what supplies?\nOptions:\n- possessing\n- plethora\n- enough\n- satisfaction\n- availability
Let's be accurate as possible. Think before you answer.
enough
Enough means as much or as many as required.

It wasn't for a lack of effort they didn't finish the job; they just didn't have enough supplies.

.

So, the answer is enough