Read the passage from a student’s argumentative essay. There is concern about the amount of time teens spend on social media. Studies show that teens use social media five hours a day.

Which statement is the most effective revision of the passage?

(A) Although there is concern about the amount of time teens spend on social media, studies show that students are on social media five hours a day.

(B) There is concern about the amount of time teens spend on social media. However, studies show that students are on social media five hours a day.

(C) There is concern about the amount of time teens spend on social media. For example, studies show that students are on social media five hours a day.

(D) There is concern about the amount of time teens spend on social media. In conclusion, studies show that students are on social media five hours a day.

(PLZ HELP I AM TIMED) ILL GIVE BRAINLEST

Facial shaving brushes are either bulb-shaped or fan-shaped. an experiment is to be conducted to determine whether the lather thickness is the same for both types of shaving brushes. in previous studies, it was determined that shaving brush size (small, medium, large) is associated with lather thickness, but shaving brush type (wolf whiskers, maggard razors, frank shaving, and so on) is not associated with lather thickness. how could the experiment best be conducted? by blocking on shaving brush size by blocking on shaving brush type by blocking on shaving brush shape by blocking on lather thickness without blocking

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Describe the social and economic challenges facing the newly formed country of slovakia.