6 Read the sentence:"It is not uncommon."What does it refer to? a technologica device children using devices seeing devices everywhere social problems because of using devices

The sentence "It is not uncommon" is a general statement that does not specify a particular subject. However, the options provided give us a context to understand what "it" might refer to. The phrase "It is not uncommon" suggests that whatever "it" is, it is something that is frequently encountered or not rare. Among the options, "seeing devices everywhere" is the most general statement that could apply to a wide range of situations, making it the most likely answer. The other options are more specific and do not align as closely with the general nature of the statement. Therefore, the correct answer is "seeing devices everywhere".