Answer:
The best answer to your question: Based on the entry, which choice indicates the origin of the word sternum, would be: Mid-17th century: Modern Latin.
Step-by-step explanation:
Although you did not mark the choices, from the question itself, and looking at the actual dictionary entries, as well as the answer choices given for this same question, the option Mid-17th century: Modern Latin is the best one, as it is the one in which the origin of the word Sternum, is pointed out.
As a matter of fact, although the word from the Latin language came to be used in 1667 for the first time, this word actually has even deeper roots, as it actually originated from the Greek word sternon. Both Sternum, and Sternon, indicate the breastbone, or the bone in the middle of the chest that divides the breastplate and the ribs into two sections.