What does "ubiquitous" mean in reference to a presence?

The term "ubiquitous" specifically refers to something that is found everywhere or is present at all places simultaneously. This concept implies an overwhelming prevalence, indicating that the subject in question is not limited to a specific location but rather exists universally or widely. In various contexts, such as technology, culture, or nature, when something is described as ubiquitous, it signifies its pervasive influence or availability, making option B the most fitting interpretation of the term.

The other options illustrate a range of presence that contrasts with the meaning of ubiquitous. For instance, “occasionally present” suggests infrequency, while “restricted to certain areas” denotes limitation to specific locations. “Rarely encountered” indicates a lack of commonality, further distancing from the essence of being everywhere at once. Thus, option B encapsulates the full scope of the term "ubiquitous."