Answer:
The expected tax bill is 21% of income. ⇒ NOT RELEVANT, SINCE IT WILL NOT CHANGE WHETHER SOPHIA CARRIES OUT THE PROJECT OR NOT
Step-by-step explanation:
Relevant information about revenues and costs includes all the revenues and costs that can change if we carry out a specific project. Those revenues and costs that do not change (either increase or decrease) are not considered relevant. In this case, tax rates are defined by Congress, not by Sophia or her company.