1-What can potentially cause a Variable Manufacturing Overhead (VMO) Spending Variance (VOSV)?

only differences between actual and expected prices or spending for VMO

only differences between actual and expected usage for VMO

degree of efficiency achieved with the cost driver for VMO

differences between actual and expected prices for, and actual and expected usage of, VMO

2-Which of the following is a purpose of standard costs and computing variances?

to provide the capability to warn management when actual results are not consistent with expectations

to ensure that operations are effective

to ensure that resources will always be used efficiently

eliminate the need for management to make subjective decisions