Difference between "Therefore" and "As a result"?

[Chico]

English Language Tests, Intermediate level

ESL/EFL Test #697 "English Slang Idioms (439)", question 7

"Maxine, stop eating your spaghetti with your fingers and use a fork! Were you born in a ......... or something?" her brother exclaimed.

(a) camp
(b) barn
(c) tent
(d) shed

English Language Tests, Intermediate level

ESL/EFL Test #697 "English Slang Idioms (439)", answer 7

"Maxine, stop eating your spaghetti with your fingers and use a fork! Were you born in a barn or something?" her brother exclaimed.

Correct answer: (b) barn
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Are there any differences in meaning of these two words - "Therefore" and "As a result"?

Chico

[Skrej]

No, they are synonymous.
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Plan to be spontaneous tomorrow.
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