On a survey, students must give exactly one of the answers provided to each of these three questions:

$\bullet$ a) Were you born before 1990? (Yes / No)

$\bullet$ b) What is your favorite color? (Red / Green / Blue / Other)

$\bullet$ c) Do you play a musical instrument? (Yes / No)

How many different answer combinations are possible?
<|im_start|>system
You are a helpful assistant.<|im_end|>
<|im_start|>user
On a survey, students must give exactly one of the answers provided to each of these three questions:

$\bullet$ a) Were you born before 1990? (Yes / No)

$\bullet$ b) What is your favorite color? (Red / Green / Blue / Other)

$\bullet$ c) Do you play a musical instrument? (Yes / No)

How many different answer combinations are possible?
Please reason step by step, and put your final answer within \boxed{{}}.<|im_end|>
<|im_start|>assistant

user
16
On a survey, students must give exactly one of the answers provided to each of these three questions:

$\bullet$ a) Were you born before 1990? (Yes / No)

$\bullet$ b) What is your favorite color? (Red / Green / Blue / Other)

$\bullet$ c) Do you play a musical instrument? (Yes / No)

How many different answer combinations are possible?
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