Critical Reasoning

I am confused with this question:

Researchers have found that one in five patients hospitalized for heart attack experiences a major depression. According to the cardiologists who conducted the research, the depressed patients are fifty five percent more likely than other heart attack patients to need hospital care for a heart problem again within a year and three times as likely to die from a future attach or other heart-related conditions.

If the statements above true, which of the following must be true?

a) If a person dies of a heart attack, there is a high probability that he may have been suffering from depression as well.
b) If a patient needs to be re-hospitalized for a heart related problem within a year of his earlier heart attack, it is very likely that he may be suffering from depression
c) There are some similarities between symptoms of depression and symptoms of heart attack in a patient
d)....
e)......

The correct answer is b. I am confused because in b, it uses "VERY LIKELY" while in the stimulus it says that "fifty five percent more likely than other heart attack patients to need hospital care for a heart problem again within a year". To me 55% is likely but cannot be VERY likely. I eliminated this answer because I thought it is an exaggerated answer. However the book says B is the correct answer. What do you think? Do you think 55% more likely means "very likely"?

Thanks

Hi disneylover2014,

"Very likely" might stretch the definition of 55% ("more likely" would be better). However, the other answers can be eliminated with better reasons.