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

Problem: a business finds that their ratio of spending to income is 5 to 9 . their total profit is $ 48000 . what is their total income ? 
Options: a ) $ 90000 , b ) $ 108000 , c ) $ 119000 , d ) $ 126000 , e ) $ 140000
b

Problem: the ratio of 2 numbers is 4 : 6 and their h . c . f . is 8 . their l . c . m . is ? 
Options: a ) 20 , b ) 24 , c ) 52 , d ) 96 , e ) 60
d

Problem: in a group of 6 boys and 4 girls , four children are to be selected . in how many different ways can they be selected ? 
Options: a ) 159 , b ) 194 , c ) 210 , d ) 209 , e ) 166

c