Which testing method should be used?

A UX Designer has created two different user interface designs for a new marketing landing expected to haveseveral visitors. The landing page has a contact from on it, and the designer wants to know which design products the most from completions.

Which testing method should be used?
A . Card Sorting
B . User Acceptance testing
C . Diary Studies
D . A/B testing

Answer: D

Explanation:

A/B testing is a testing method that compares two versions of a user interface design to measure which one performs better in terms of a specific goal, such as form completions. A/B testing can help the UX Designer to evaluate the effectiveness of different design elements, such as layout, color, typography, copy, etc. A/B testing can also help the UX Designer to optimize the conversion rate of the landing page and increase the number of leads generated.

Reference: [A/B Testing], [Optimize Your Landing Pages with A/B Testing]