What does the author mean with the statement, "Experts hypothesize that the surge in myopia prevalence is caused by the increased use of computers and smartphones, however definitive research has not been published."? A. More research is needed to determine the causes of myopia.
B. Computers and smartphones are not a cause of the increase in myopia diagnosis.
C. Myopia diagnoses will most likely increase as computer and smartphone use continue.
D. Research studies on the impact of computers and smartphones on eyesight need to be published.

honetly   i have no idea. i need points so i dont have to subcribe sp i can finish a test

active voice: my father cut the tree.

passive voice: the tree was cut by my father.

active voice: people buy newspapers every day.

passive voice: newspapers are bought (by people) every day.

active voice: people have been using movies as political propaganda since world war ii.

passive voice: movies have been used as political propaganda since world war ii.

active voice: donna gave me my birthday present.

passive voice: i was given my birthday present (by donna). / my birthday present was given to me (by donna).

active voice: mom will leave the keys on the counter.

passive voice: the keys will be left (by mom) on the counter.

the words in parentheses are the agent of the passive voice and can be omitted when obvious, generic, or simply unnecessary.

maybe attach the passage in case, someone has never read it!

explanation:

hope this

-sawyer