Rock that become hot enough to melt and flow are referred to as blank by scientists

Lava

Explanation:

Heat at high temperature can cause rocks to melt into liquid form within the underground layer of the rocks. This molten rock trapped within is referred to as MAGMA. However, when this trapped molten magma begins to flow, it is said to be LAVA by scientists.

It is important to note that although magma and lava are both molten forms of rocks or a volcano, their differences lie in the fact that A LAVA IS AN ERUPTED or FLOWING MAGMA.

d. platinum would have the greatest temperature increase because it has the lowest specific heat.