Auxins 1)were discovered in Japan
2)can be used to make flowers bloom
3)are responsible for phototropism
4) all of the above

I think this would be 3. Are responsible for phototropism

Explanation:

I automatically know it isn't all of the above, because nowhere in my text does it say that auxins were discovered in Japan.

It also doesn't talk about it making flowers bloom, but it can be used to make seedless fruits.

However, it does talk a lot about phototropism, here is what my section says:

"The growth of a plant toward a light source is called phototropism. Auxins are responsible for phototropism."

If this is wrong I will edit it or comment it.

I hope this helps, have a purrrfect day!

Just finished the assignment it's 100% correct answer

All the above

Explanation:When there is the option for "All the above/below" it is typically the answer. So I am making a guess based of this statement saying All the above is your answer