instruction:
In this task, you need to provide the correct option for a given problem on probability from the provided options.
question:
Problem: in a certain animal population , for each of the first 3 months of life , the probability that an animal will die during that month is 1 / 10 . for a group of 150 newborn members of the population , approximately how many would be expected to survive the first 3 months of life ? 
Options: a ) 110 , b ) 146 , c ) 152 , d ) 162 , e ) 170
answer:
a


question:
Problem: 6 students are equally divided into 3 groups , then , the 3 groups were assigned to 3 different topics . how many different arrangements w are possible ? 
Options: a ) 30 , b ) 60 , c ) 90 , d ) 180 , e ) 540
answer:
c


question:
Problem: two cards are drawn together from a pack of 52 cards . the probability that one is a spade and one is a heart , is : 
Options: a ) 2 / 109 , b ) 7 / 109 , c ) 8 / 223 , d ) 14 / 263 , e ) 13 / 102
answer:

e