Marta feels that sentence 5 needs parentheses. Which revision places them appropriately?
To compound matters, plastic never (completely) biodegrades, so the straws remain in the environment in one form or another
they eventually break down into deadly microplastics in horrifying perpetuity.
To compound matters, plastic never completely biodegrades, so the straws remain in the environment (in one form or another)
they eventually break down into deadly microplastics in horrifying perpetuity.
To compound matters, plastic never completely biodegrades, so the straws remain in the environment in one form or another
(they eventually break down into deadly microplastics) in horrifying perpetuity.
(To compound matters) plastic never completely biodegrades, so the straws remain in the environment in one form or another
they eventually break down into deadly microplastics in horrifying perpetuity.

the correct answer will be d or c for me it may be different

in ray bradbury's short story "a sound of thunder", mr. eckels's fearfulness leads to drastic consequences for the rest of the world.

in the story, mr. eckels, who is a hunter, hires a time travel company to travel to the age of dinosaurs. although he is excited for the hunting expedition at the beginning, when they reach there and mr. eckels sees the tyrannosaurus, he feels frightened. as he is afraid of the tyrannosaurus, he steps off the path although he has been warned not to do it. by stepping off the path, the entire course of the future is affected: mr. eckart alters the future by stepping on a butterfly, which causes a new man to be elected president in the future. in that way, it is mr. eckart's fearfulness what triggers 'the butterfly effect' and what leads to drastic consequences for the rest of the world.

the noun in this is person