Huong collects coins. over a three-year period she collected 1,000 nickels. after organizing them by year, she found that the number of nickels from a given year was related to the number minted that year:

minted (100 mill) | 3.3 | 7.8 | 11.8 | 12.6 | 15.1 | 16.4 |

in sample | 3 | 19 | 27 | 24 | 30 | 43 |

a.) logarithmic
b.)exponential
c.)linear
d.)quadratic