The most important right of the employee in discharging his duties to the employ...

This question is asking about the most important right that an employee has when performing their job duties for their employer. The options are regular emolument, job security, working facilities, and annual leave.

Out of these options, the correct answer is option B: job security.

Job security refers to the assurance that an employee will not be arbitrarily dismissed from their job without a valid reason. It means that employees can expect to have stable employment as long as they fulfill their job responsibilities and meet the employer's expectations.

Having job security is important because it provides employees with stability and peace of mind. It allows them to plan for their future, such as making financial commitments or investments, without the fear of losing their job unexpectedly.

While regular emolument (option A), which refers to receiving a consistent salary or compensation, is also important, it is not the most essential right for an employee. Without job security, an employee may not have the opportunity to receive regular emolument.

Working facilities (option C) and annual leave (option D) are also important rights for employees, but they are not as fundamental as job security. Working facilities refer to the tools, equipment, and resources provided by the employer to enable employees to perform their job effectively. Annual leave refers to the entitlement of employees to take paid time off from work for rest and relaxation.

In summary, the most important right of an employee when discharging their duties to the employer is job security. This ensures stability and reassurance in their employment, allowing them to plan for their future and have peace of mind.