Daniel Hale Williams' motivations were to succeed in the first heart surgery and to overcome discrimination.
He contributed to science by helping advance the needed technology for heart surgeries-- after he complete the first ever heart surgery, scientists looked into antibiotics and proper technology so the heart surgeries in the future would be much more easier.
D, First person narrative uses I, me, my, etc.
Answer:
well before all the waters gone you build a boat
Explanation:
as you may have read in the question you have to try to escape before all the water is gone
