Answer:
class A stocks
Step-by-step explanation:
in 5 years, class A stock will be worth = $30 x (1 + 6%)⁵ = $40.15
in 5 years, class B stock will be worth = $20 x (1 + 12%)⁵ = $35.25
now we need to determine the present value if each stock:
class A stock present value = $40.15 / (1 + 8%)⁵ = $27.33
class B stock present value = $35.25 / (1 + 8%)⁵ = $23.99
since the present value of class A stock is higher, then the engineers should select that type of stocks.