In which sentence is symbiotic used correctly?

a. barnacles and whales have a symbiotic relationship; barnacles attach themselves to whales for a
safe place to live and transportation to food sources, and whales benefit from the protective,
spiny barrier that barnacles provide.

b. the software company introduced a symbiotic app that allows users to track every calorie
consumed or spent throughout the day.

c. the rivalry between the two teams is symbiotic, players from both sides regularly engage in
verbal and even physical altercations and spectators can count on witnessing some sort of drama
whenever the teams play together.

d. emile's symbiotic nature is demonstrated by the countless hours he puts into volunteering at the
youth center coaching sports and tutoring students in math.

Plzz true or false: a hyphen can indicate that a word has been split up at the end of a line and continues onto the next line.

Read the excerpt from act iii of the importance of being earnest. jack. [in a pathetic voice.] miss prism, more is restored to you than this hand-bag. i was the baby you placed in it. miss prism. [amazed.] you? jack. [embracing her.] yes . . mother! miss prism. [recoiling in indignant astonishment.] mr. worthing! i am unmarried! jack. unmarried! i do not deny that is a serious blow. but after all, who has the right to cast a stone against one who has suffered? cannot repentance wipe out an act of folly? why should there be one law for men, and another for women? mother, i forgive you. [tries to embrace her again.] what is the best conclusion that can be drawn about jack, based on his words and actions in this excerpt? he has a tendency to be rude. he is inclined to show his emotions. he has a tendency to be gullible. he is inclined to be unresponsive.

Make sure the topic of your persuasive essay is not a.something someone else is writing about b.a fact c.something you have written about before