Please help.

When there is a high degree of correlation in time-series data, the condition is known as

a. serial correlation

b.multiplecorrelation

c.spuriouscorrelation

d.multicollinearity

The shut-down point of a firm in the short run occurs at

a.P = ATC

b.P = AVC

c.P= AFC

d.P < ATC

Which function of management is most concerned with risk minimization?

a.ost minimization

b.human resource management

c.complying with government regulations

d.constant returns to scale