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

Problem: the h . c . f . of two numbers is 23 and the other two factors of their l . c . m . are 13 and 14 . the larger of the two numbers is 
Options: a ) 276 , b ) 299 , c ) 312 , d ) 322 , e ) none
d

Problem: the present ages of reena and usha are 24 and 36 yr . respectively . what was the ratio between the ages of usha and reena respectively 8 yr ago ? 
Options: a ) 7 : 4 , b ) 4 : 7 , c ) 11 : 8 , d ) 8 : 11 , e ) 9 : 12
a

Problem: divide $ 672 among a , b in the ratio 5 : 3 . how many $ that a get ? 
Options: a ) $ 120 , b ) $ 500 , c ) $ 420 , d ) $ 610 , e ) $ 315

c