Theory of mind:
a) is a concept of cognitive development that describes the changing level of support offered to children.
b) is a concept that refers to awareness of one's own mental processes and the mental processes of others.
c) is an approach that emphasizes the contexts of learning and the fact that knowledge is mutually built and constructed.
d) is an umbrella-like concept that consists of a number of higher-level cognitive processes linked to the development of the brain's prefrontal cortex.