The correct answer is - True.
The convection currents that appear deeper into our planet, mainly in the mantle layer, are influencing the surface crustal layer. These currents are the ones responsible for the movement of the tectonic plates. As the tectonic plates are moving, they collide, subduct, move away from each other, and in lot of cases they are making cracks in the crust or making it much thinner, and that gives the opportunity for the magma from the mantle to rise up towards the surface. As the magma reaches the surface, it starts to lift it its surrounding area, creating volcanoes, and thus volcanic activities.
