The investigation of a topic is called the argument. claim. research. source.

the answer should be research.

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C) research.

Explanation: the denotation of a word is its literal meaning, the definition that we can find in a dictionary, a word can have several denotations (or definitions). It is the contrary to connotation, which is the meaning of a word given by the context or by the emotions that it conveys. From the given options, the word that represents the given denotation (or definiton) is the corresponding to option C: The investigation of a topic is called the research.

the answer is definitely option c. "sonnet xxxi best illustrates the division. in the octave, the poet observes that the moon is in love. in the sestet, he gives his reaction to the fickleness of woman's love."