Final answer:
The sentence that specifically emphasizes the gift was B, where quotation marks highlight the concert ticket given by Joseph to Deborah.
Step-by-step explanation:
The sentence that emphasizes what the gift was is B. Joseph gave Deborah the perfect present "a ticket to a concert" so that she could enjoy listening to the violin.
The use of quotation marks in this sentence highlights the specificity of the gift, which was a ticket to a concert. This punctuation choice focuses the reader's attention directly on the nature of the present, distinguishing it clearly from the other elements of the sentence. It acts like verbal italics, giving the gift a special status in the realm of the narrative. The presence of quotation marks often signifies importance or uniqueness in writing, thereby accentuating the specifics or the substance of what is being quoted—in this case, the concert ticket.