You are asked to validate the potential revenue field on an opportunity object. The Child revenue line has four fields as Q1, Q2, Q3, and Q4 revenue, and the sum of Q1, Q2, Q3, and Q4 must be less than the potential revenue. You need to get the child object value from the parent object to validate.
Which is the correct option to achieve this? (Choose the best answer.)
Select one of the following: