What does the phrase "Bees of England" refer to ?

Reading Comprehension 
Read the quoted parts carefully and answer the questions in English.
Wherefore feed and clothe and save
From the cradle to the grave
Those ungrateful drones who would 
Drain your sweat — nay, drink your blood?
What does the phrase "Bees of England" refer to ?
【正确答案】：

IT REFERS HERE TO THE LABORING PEOPLE IN ENGLAND.

【题目解析】：这里指的是英国的劳动人民。