The type of context clue that would be used to determine the meaning of obsolete is:
Inference refers to the ability to decode the meaning of a word from the clues that are found around it. Even if the word is not aptly described, the list which shows the things that have now become obsolete can help a reader sense that the word means things that are no longer in existence.
So, in option B, the inference is a context clue for deducing the meaning of the word. It is important to cultivate the ability to make inferences because the writers do not always reveal certain pieces of information clearly. It is now left to the readers to make sense of the things being discussed in the text.
If you do not know the meaning of the word obsolete, but can sense that the items being described as obsolete are no longer in use, then you should have a clue.
Learn more about inference here:
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