Answer: D. Socioeconomic status
Explanation: Socioeconomic status is an economic and sociological combined total measure of a person's work experience and of an individual's or family's economic access to resources and social position in relation to others.
Answer: Selective attention
Explanation:
Selective attention the name given to the technique used by people where they ignore certain stimuli around them and instead give attention to other stimuli.
It is an important technique because with so many things happening around us, it is important that we can block out some so that we may process the relevant ones as we cannot process all of them.
With selective attention, Valarie can ignore the footsteps, the woodpecker and even her classmate and focus on the teacher.