The answer is A. Although Vladimir Nabokov studies zoology during his first term, he eventually shifts to French and Russian literature in Cambridge. He graduates in this field with first-class honors and continues to write poems in Russian and English.
A poetic device is a tool that serves different purposes in a poem. Some of them are ornamental, some enhance the meaning of the poem and others add to its rhyme and lyricism. The most common poetic devices are alliteration, repetition, metaphor, simile, personification, etc.
The sender is focus because it is the “main idea” of an essay.
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