At Christmas, employees of the Sugar Factory receive huge …

Analyze the question: The sentence is about what employees receive at Christmas from their employer. We need a word that fits both the people (employees) and the occasion (a seasonal, special payment).

Explain the concept: Look at the exact meaning of each option:

• Benefits: non-cash or ongoing perks such as health insurance, pension, or housing allowance. They aren't usually tied to Christmas and aren't described as "huge" one-off gifts.
• Dividends: payments made to shareholders out of company profits, not to employees as employees.
• Bonuses: extra payments given to workers on top of their regular pay, often at festive periods like Christmas or as a reward for good performance.
• Salaries: regular fixed pay (usually monthly). It is not something special received "at Christmas."

Solution, step by step:

1. Identify the key clues: "At Christmas" means a special, occasional payment. "Employees" means workers, not shareholders.
2. Eliminate B (dividends), since they go to shareholders.
3. Eliminate D (salaries), since salaries are regular and not specific to Christmas.
4. Between A (benefits) and C (bonuses): "huge bonuses" is the natural collocation, and a Christmas bonus is a standard expression. "Huge benefits" doesn't fit the idea of a one-time seasonal reward.

Answer: The correct option is C. bonuses.

Tip: Remember the "Christmas bonus" collocation. In "word completion" questions, ask yourself who receives the payment and when. Employees plus a special occasion usually means bonus; shareholders means dividend; regular monthly pay means salary.