According to person-centered theory, a relationship between the client and therapist in which the therapist demonstrates attitudes of caring, genuineness, emmpathy, positive regard, and understanding is:

a necessary and sufficient condition for therapy to occur.

Explanation:

a.indigo and cochineal

b.animal hides

c.silver and gold

e.cacao beans and sugarcane

i believe the answer is: returns on investments, no wages

people who belong in upper class society would most likely get there by obtaining multiple source of income, which a certain percentage of ownership for businesses. since most of them are job creator, they would most likely get their money from profit, not wages.