Which of the following types of fungi thrives inside the tree's vascular tissue and blocks its water supply, thus causing the death of the tree?

Pine trees are susceptible to pine pitch canker. Pine pitch canker first kills the tips of branches, then spreads down the entire length of branches, and ultimately it can kill the whole tree. Infected trees die because the fungus thrives inside the tree's vascular tissue and blocks its water supply. The fungus is spread through beetles that attack pine cones.