In this task, you need to provide the correct option for a given problem on probability from the provided options.

Q: Problem: a question paper has 2 parts , a & b , each containing 5 questions . if a student has to choose 3 from part a & 4 from part b , in how many ways can he choose the questions ? 
Options: a ) 50 , b ) 100 , c ) 152 , d ) 150 , e ) 55

A: a
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Q: Problem: kim has 8 pairs of shoes ; each pair is a different color . if kim randomly selects 2 shoes without replacement from the 16 shoes , what is the probability that she will select 2 shoes of the same color ? 
Options: a ) 2 / 5 , b ) 1 / 5 , c ) 1 / 9 , d ) 1 / 10 , e ) 1 / 15

A: e
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Q: Problem: how many different ways can 2 students be seated in a row of 8 desks , so that there is always at least one empty desk between the students ? 
Options: a ) 50 , b ) 42 , c ) 24 , d ) 20 , e ) 12

A:
b
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