Explanation:

When you're configuring a promotion in Salesforce Industries CPQ, and you want to change the price of a child product, you typically use either a:

B. Adjustment ✅
A Pricing Element Adjustment allows you to apply a discount or markup to the child product as part of the promotion.
This is a common way to offer promotional pricing (e.g., 20% off an add-on).

C. Override ✅
A Pricing Element Override lets you set a specific fixed price for a product, regardless of base or list price.
Useful when the promotional child product should be priced at a custom amount (e.g., $0 or $9.99).

❌ Why the others are incorrect:

A. MACD (Modify, Add, Change, Delete)
🔸 Refers to change order processes (Asset-Based Ordering), not pricing within a promotion.

D. New Order
🔸 "New order" refers to the type of transaction, not how pricing is configured.

E. Different price list
🔸 While technically possible, switching price lists is not the standard or recommended way to handle promotional pricing for child products. It's harder to control and not promotion-specific.