Answer:
The answer should be A for 1st one and D for the 2nd one
Step-by-step explanation:
q1) Why does the author begin the article with a description of Marie’s activities during World War I
We know this by process of elimination, b cannot be true, as Marie Curie was already researching before WW1
c cannot either because there is no mention of her family
d cannot because it does not correspond with the question, so it has to be A
q2) If the 1st answer was A, in the 2nd question the other answers all do not make sense as they do not support the answer but only D supports the answer above.