Answer:
d. a., b., and c.
Step-by-step explanation:
Reduction in pay (a) Marginal tax (b) Reduction in tax (c = a x b)
A. $5000 0.28 $1,400
B. $4000 0.15 $600
C. $6000 0.35 $2100
Reduction in After-tax Income (d = a - c)
A. $3,600
B. $3,400
C. $3,900
this means that all the above a, b, and c options are correct because in all the three cases, the reduction in after-tax pay of the employee will be less than $4000 value of the nontaxable insurance premium to be paid by the employer which would ultimately benefit the employee.