Which passage from the article best supports the idea that lesserblack tarantulas and humming frogs help each other?

The Colombian lesserblack tarantula has no problem eating snakes, small possums, and other prey.
The tarantulas back away once their mouth feelers get close to the frogs.
Then, this unlikely family settles into its shared burrow.
The humming frogs get bodyguards. And they aid the tarantulas in return. The frogs eat the ants that would otherwise feast on the spiders' eggs.

The passage "The humming frogs get bodyguards. And they aid the tarantulas in return. The frogs eat the ants that would otherwise feast on the spiders' eggs." best supports the idea that lesserblack tarantulas and humming frogs help each other.