In a queue class implemented with an array, which operation(s) require linear time for their worst-case behavior? Select one: a. method to add to the queue b. method to return the next element in the queue c. method to check if the queue is empty d. method to remove from the queue e. none of these

notice: a queue class implemented with an array

In a queue class implemented with an array, which operation(s) require linear time for their worst-case behavior? Select one: a. method to add to the queue b. method to return the next element in the queue c. method to check if the queue is empty d. method to remove from the queue e. none of these