Olga has several line items under her campaign. Two of the line items are underdelivering and not meeting performance goals, while two are high-performing. Which of the following is the recommended optimization strategy?

(A) Adjust frequency caps on the underdelivering/underperforming line items to serve more impressions

(B) Adjust frequency caps on the underdelivering/underperforming line items to serve less impressions

(C) Shift budget from the underperforming and underdelivering line items to higher performing line items that are scaling.

(D) Shift budget from high-performing line items to the underperforming/underdelivering line items.