Final answer:
C) Mary has a high need for touch.
Mary's reluctance to make online purchases is likely due to a high need for touch, which suggests she prefers the tactile experience of physical products before making a purchase, rather than sensory perception thresholds or linguistic relativity.
Step-by-step explanation:
The question 'Mary does not like to buy things online. Which of the following is a good explanation for this?' is asking for a reason behind Mary's preference to avoid online purchases.
Her reluctance to buy things online could be explained by a high need for touch (option C), which suggests that Mary may prefer to physically feel and interact with products before purchasing. This need can provide a tactile assurance of quality and personal suitability that cannot be replicated in an online environment.
It's important to note that terms such as absolute threshold and differential threshold relate more closely to sensory perceptions - the minimum detectable stimulus level (absolute threshold) and the smallest detectable difference between stimuli (differential threshold or just noticeable difference) - and are not directly applicable to online shopping preferences.
Lastly, the notion that people cannot feel or experience something without a word for it is explained by linguistic relativity, which is not directly relevant to this question.