Correct Option (D)
The given statement explicitly concludes, "television is not a luxury item." The phrase "as one can learn many things through television" provides the justification for this conclusion. Therefore, the statement "Television is not a luxury item" is a direct and valid inference drawn from the provided text, as it represents the primary assertion of the original statement.
Incorrect Options:
Option (A) "All expensive things are regarded as luxury" is incorrect because the original statement directly contradicts this by asserting, "Though quite expensive, television is not a luxury item." This demonstrates that not all expensive items are necessarily classified as luxuries.
Option (B) "All essential things for learning are not luxury" is an overgeneralization. The statement indicates that television is not a luxury because one can learn from it, but it does not extend this principle to *all* essential things for learning. Furthermore, the statement uses "can learn many things," not "is essential for learning." This option makes an overgeneralization not supported by the text.
Option (C) "Television is essential for learning" is an overstatement. The original statement says "one can learn many things through television," which implies it is a useful tool for learning. However, it does not claim that television is *essential* for learning, as learning can occur through various other means. This option exaggerates the role of television beyond what the statement implies.