the ans is option D
A they contain exogenous or modified DNA I think
c. live where it’s cold and icy
the correct answer is 4) heat and pressure
metamorphic rocks arise from transformation of existing rocks types, in a process called metamorphism. during metamorphism the original rock(prolith) change into metamorphic rock by heating (150-200c) and pressure of more than 1000 bar. the original rock can be sedimentary, igneous, or existing metamorphic rock.