Question

For a scientific theory to be valid, it must allow you to

O perform experiments

obtain new results each time.

find a new, more complex explanation

Make predictions

Answer 1

Step-by-step explanation:

That's quite a bit of points. Offer 20 next time (which shows up as 10).

Not all experiments lend themselves to this, but the best ones do. Make predictions. The startling experiments (the best of them) certainly allow you to make predictions

Most of the time, experiments confirm what was originally thought. It is, however, the best answer among this bunch.

A is also possible, but not always. I will stick with D, but I think others will pick A.