Final answer:
The element used when an advertisement tells of a new half-off price is an Offer. It is a key part of the advertising strategy to persuade customers by presenting a valuable deal, separate from elements of urgency or layout that may also be present in the ad.
Step-by-step explanation:
When an advertisement mentions a new half-off price, the element being utilized is C. Offer. An offer in advertising represents the part of the ad that presents the deal or promotion to the consumer. This can include discounts, coupons, or special pricing, such as the half-off deal mentioned. It's a key component in attracting customers by providing them with a compelling reason to act quickly and make a purchase.
Offers are crafted to establish a value proposition for the consumer, presenting the product or service at a price point that seems beneficial or advantageous. The inclusion of a time-limited discount, like a half-off sale, also creates a sense of urgency, prompting customers to take advantage of the deal before it expires. However, urgency is a separate element usually tied to the timeframe in which the offer is available, and not to the offer itself.
The presentation of the offer, including the visualization of the half-off price and how it's highlighted in the advertisement, may also involve components of layout and design, but ultimately it's the actual deal or pricing that defines the offer element of the advertisement.