Alfred wegener proposed his idea of continental drift which later became

Remember that Wegener did not have evidence for what he was proposing, so, later scientists discovered the Tectonic plate movement theory and they realized that what Wegener was saying was right.

A// It became a theory but I'm not sure

If it is a question with multiple choice it would be easier for me to answer

July’s up be eckvkbbcein lbegonlbf os

Check google mate it's easy