Which of the following statements is true?

speciation can happen when gene flow is reduced.

geographic isolation can cause an increase in genetic drift.

gene flow tends to increase differences between populations.

natural selection is random.

Speciation can happen when gene flow is reduced.

Explanation:

I got it right on Odyseyware.

if you are on the computer you can not take a picture but you can upload one but i am not sure about phones but i'm pretty sure it's the but to upload one just click the paper clip looking thing/ link thingy thing and upload a pic