Please help asap. Brainliest to correct.

Which formula can be used to calculate the percent yield? (5 points)

Select one:
a. (Theoretical yield ÷ actual yield) x 100

b. (Actual yield ÷ theoretical yield) x 100

c. (Amount of reactants ÷ amount of products) x 100

d. (Amount of products ÷ amount of reactants) x 100