Final answer:
The use of a semicolon to separate items in a list where at least one item includes commas is correct. This ensures clarity in complex lists. Semicolons also connect closely related main clauses, especially when not joined by a coordinating conjunction or connected by a transitional phrase.
Step-by-step explanation:
The statement is true; you should use a semicolon to separate items in a list when at least one item contains a comma. This helps to clarify how the commas within the items are functioning and ensures that the list is easy to read. For example, in a list of cities and their corresponding countries, you might write 'Paris, France; Rome, Italy; and Berlin, Germany.' Here, the semicolon separates the items to avoid confusion.
In addition to list separation, semicolons are also used to join closely related main clauses. If the clauses are connected by a transitional word or phrase like 'however' or 'therefore', or if the clauses are not joined by a coordinating conjunction, a semicolon is appropriate. Additionally, a semicolon can connect two independent clauses where the second restates the first.
Avoid overusing semicolons and limit their use to connecting two independent clauses or separating complex list items; they should not be used to separate words or phrases from the independent clause unless necessary for clarity.