For each of the following independent cases, fill in the missing amounts in the table: (Indicate the effect of each variance by selecting "F" for favorable, "U" for unfavorable.) Case Direct Labor Rate Variance Direct Labor Direct Labor Efficiency Variance Spending Variance A 1,700 U $ 3,100 F B 1,050 F $ 1,600 U C $ 1,950 F $ 3,700 F D $ 1,450 U $ 4,400 U E $ 2,050 F $ 2,900 U F $ 1,600 U $ 2,100 U