Asap or i will i've narrowed it down to 2 choices! 30 multiple

at a convergent plate boundary:

a. three lithospheric plates move over each other

b. one lithospheric plate can slide below another one

B. one lithospheric plate can slide below another one

Explanation: At a convergent boundary, two plates are sliding towards one another which causes one plate to slide below the other.

Hope this helps!  :)

The correct answer is B. At a convergent plate boundary, one lithospheric plate can slide below another one.

Explanation:

According to the plate tectonics, a convergent plate boundary is a place on Earth where two moving tectonic plates come together and (seen from above) adjoin each other. Due to the divergent movement, the lithosphere thickenes, which causes extensive deformation in the earth's crust.

Convergent plate boundaries are either subduction zones or places where continental collision occurs. In the first case one plate slides under the other (subduction), in the second case a mountain range is formed. With subduction, the subducing plate usually consists of oceanic crust, the overriding plate can consist of both oceanic and continental crust. In case of mountain formation, both plates normally consist of continental crust.