Question

when particles are suspended in liquid (like pollen in a water glass), they will zigzag randomly through the liquid and collide with one another in perpetuity. this type of random, continuous ______ is known as brownian motion, can be observed throughout the natural world. which choice completes the text so that it conforms to the conventions of standard english? choose 1 answer: a movement: which b movement which c movement, which d movement. which

Explanation:

In English grammar, a non - restrictive relative clause (here “which can be observed throughout the natural world”) is set off by a comma. “Movement” is the correct noun for the context. Option A has a colon which is incorrect for this relative clause construction. Option B lacks the comma. Option D has a period and capitalizes “Which” wrongly (since it's a non - restrictive clause, “which” should not be capitalized here).

Answer:

C. movement, which