Which stage in Treisman's "attenuation model" has a threshold component?

Alex was paid $100 for eight hours of work. The money was an

A) primary reinforcer B) spontaneous recovery C) conditioned reinforcer D) operant behavior

The cerebral cortex is severed in individuals who are considered to have a "split brain" after a surgery to stop epileptic seizures

Indicate whether the statement is true or false.