Final answer:
To determine which device, smartphones, tablets, or PCs, has a higher average conversion rate, we need specific data. In the absence of such data, it is not possible to determine the answer(option d).
Step-by-step explanation:
The question asks which device, smartphones, tablets, or PCs, has a higher average conversion rate. To determine this, we need more information and context about the conversion rate being referred to. Conversion rate typically refers to the percentage of website visitors who take a desired action, such as making a purchase or filling out a form. It can vary depending on the industry, website, and target audience.
If we assume that the question is referring to the conversion rate in the context of e-commerce, it is difficult to determine which device has a higher average conversion rate without specific data. Conversion rates can vary depending on factors such as user behavior, website design, and customer preferences.
Therefore, without specific data, it is not possible to determine which device has a higher average conversion rate. The answer is D) Equal for Smartphones, Tablets, and PCs.