The answer is a compromismo
The answer is "Yo"
this is the answer because "Laura" is saying her opinion.
Not "nosotros"(we) because she is talking about herself.
Not "tu"(you) or "ellas"(they fem.)because it doesn't match up with the verb used in the sentence "creer".
Take out the e- and just put (1927-2014)
And instead of “más conocido” put “mejor conocido”
Other than that it looks good hope you get that “A”
Alomejor porque le iso algo nose tienes algo como a b c o d