The theory of plate tectonics . A. incorporates continental drift but not seafloor spreading B. incorporates seafloor spreading but not continental drift C. incorporates and explains both seafloor spreading and continental drift D. does not incorporate seafloor spreading or continental drift

C. incorporates and explains both seafloor spreading and continental drift

Explanation:

The theory of plate tectonics -

It refers to the theory about the Earth's crust , which is characterized into various layers , which floats over the mantle , is referred to as the theory of plate tectonics .

The theory helps to study various aspects of these plates , including the continental drift as well as the seafloor spreading .

Hence , from the given question ,

The correct answer is c.