Which of the following could be considered a bribe?

Bribery involves offering something of value to influence decision-making improperly. According to the L5M5 study guide (p.47), inviting a buyer to play golf during a tender (A) and donating to a politician to influence voting (B) are clear examples of bribery. A Christmas gift (C) may sometimes be considered borderline depending on company policies, but it is generally not categorised as bribery unless intended to influence. Paying invoices early (D) is not bribery. Procurement professionals must comply with anti-bribery policies and legislation such as the UK Bribery Act to maintain integrity.

???? Reference: Managing Ethical Procurement and Supply (L5M5) Study Guide, p.47