Hi there. I believe it is 50 characters long if I am not mistaken. I have microsoft so I'm pretty sure I'm right. Hope I helped you!
The answer should be (C) Present perfect. This is because 'has' stands for present and 'eaten' is past participle, which makes it present perfect.
Explanation:

As he English physicist who helped revolutionize the knowledge of atomic structure by his discovery of the electron (1897).
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Answer:
The factors that led up to and fueled the Triangular trade was the discovery of land and slavery.
Explanation: