Read the passage from "To Autumn."

Season of mists and mellow fruitfulness,
Close bosom-friend of the maturing sun;
Conspiring with him how to load and bless
With fruit the vines that round the thatch-eves run

What effect is Keats most likely trying to achieve with his rhyme scheme?

Rhyming "fruitfulness" and "bless" suggests a need for religion during the autumn harvest.
Rhyming "sun" and "run" issues a warning about how dangerous autumn can be.
Rhyming "fruitfulness" and "bless" emphasizes the positive aspects of autumn.
Rhyming "sun" and "run" stresses the importance of spending time outside in autumn.