Thriving can teach you to conquer life problems and being intelligent in some ways like financially
Since a speculation does not have firm evidence, it is a hypothesize.
So the final answer is:-
C. Hypothesize
Answer:
1, 2 & 4 are the right answer choices
B. Solar power saves money for the user and makes the world a better place all around.
A is a personal opinion, C is not specific at al, D is factual, but it doesn't exactly make sense because though it helps the environment it doesn't really sustain our resources. Therefore B is the correct answer.