Which best defines the term "social-sanction"?

Which best defines the term "social-sanction"? chose the correct answer

a)The forced removals of peasant farmers off the land to make room for sheep to support the textile industry.

b)A moral concept that personal gain is good, the idea that each man not only may but should constantly strive to better his material lot

c)Handing down tasks from generation to generation according to custom and usage: son follows father and a pattern is preserved.

c)Whether something like greed or profit-motive is considered proper or good for society.

d)good old 'survival of the fittest', as way to prevent any matters of conscience or morality from interfering with rugged individualism.