highest frequency at which an ANSI C routine can run on an embedded system -

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which of following correctly identify highest frequency @ ansi c routine can run on embedded system if execution time 18 miliseconds

a 18 hz b 55 hz c 18 khz d 0.055 hz e 55khz

what relationship between execution of routine , maximum frequency of , embedded system?

the assumption here program piece of software running on embedded system. 

int main(void) {    ....    while(1)    {       ansi_c_function()    } }

if function takes 18 ms, frequency of calling function?

the answer 1/18ms i.e. 55 hz


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