Depends on your routine, lol. Maybe there is a scientific answer for that, but for me if you have television in your room you might skip your meals because you'll prefer watching movies. I know my answer doesn't matter haha.
I believe it's c.) short-term goal
The spider has a venom in their teeth that they inject into your skin when they bite you so you won’t bleed everywhere and your skin has a reaction to the venom because it’s strong enough to have an effect just not strong enough to hurt you.