A programmer writes $500$ lines of computer code in $17$ days. Must there have been at least $1$ day when the programmer wrote $30$ or more lines of code? Why?

$---$Select$---$Yes$$No $.$ If the programmer wrote less than $30$ lines of code per day for $17$ days, then the maximum number of lines that could be written is $.$ Since this number is $---$Select$---$greater than$$less than$$equal to $500,$ it is $---$Select$---$necessary$$not necessary that the programmer wrote $30$ or more lines of code during at least one of the $17$ days.