Answer:
The correct answer is letter "B": lost sales and increased costs for public relations activities.
Explanation:
Boycotts and protests aim to harm business operations to attract special attention to what the individuals causing the damage are requesting. When those demands remain unattended for long periods, employees take radical measures that go against the interest of the firm to push them to take a position on their requests quickly. Otherwise, the most affected is the company since its operation capacity decrease which lowers its revenue.
Besides, in front of strikes, for instance, the public image of the firm is exposed which is potentially harmful to the institution and could turn the tide completely against the company.