Which of the following exists in a one - party state?

Step 1: Analyze the question The question asks what exists in a one-party state. It tests your understanding of the basic definition of this political system.

Step 2: Explain the concept A one-party state is a system in which only one political party is legally allowed to exist and hold power. Other parties are banned or not allowed to compete. Examples include Tanzania under TANU/CCM (before 1992), Ghana under Nkrumah's CPP (from 1964), and Zambia under UNIP (1972-1991).

The key point is that it is the ruling party that is the sole legal party. It is not necessarily a workers' party, a students' party, or any party of a particular class.

Step 3: Evaluate the options

• A. Only the workers party is allowed to exist: Wrong. This is too specific. Some one-party states are communist, but many are not. A one-party state is not defined by the party being a workers' party.
• B. Only the students' party is allowed to exist: Wrong. No such general feature exists in one-party states.
• C. Elections to the legislature are held at the party's conference: Wrong. This is not a defining feature. Elections, where held, usually involve the public voting for candidates of the single party.
• D. The ruling party is the only legal party: Correct. This is the exact definition of a one-party state.

Step 4: Answer The correct option is D.

Tip: In definition questions, choose the option that is general and fits every example, not the one that is too specific. "Workers" and "students" are narrow labels, while "the ruling party is the only legal party" holds in every one-party state.