Which technique or process did Marisol Escobar use in this sculpture?

The theme of social protest remained a consistent focus for jacob lawrence throughout his career. in the 1960s lawrence was inspired by news reports and photographs, including images of segregated lunch counter sit-ins and stories of the   freedom riders in the civil rights movement. from the 1970s onward, lawrence's work focused less explicitly on contemporary social issues.

Well you didn't give me the choices, but here goes. frigid means basically "very cold." while balmy is the complete opposite and means "warm and  humid."