Read the passage. i had been kneeling on the island grass; when the unrecognizable flap of frog skin settled on the creek bottom, swaying, i stood up and brushed the knees of my pants. i couldn't catch my which best identifies a phrase used to establish tone and explains its effect? a. i had been kneeling on the island grass; it establishes a calm, collected atmosphere. b. when the unrecognizable flap of frog skin settled; it demonstrates the author's dislike of nature. c. on the creek bottom, swaying; it shows the author's growing appreciation of the natural world. d. i couldn't catch my ; it illustrates the author's shock and surprise at the event