A. Provide transitions for shifts in topic, mood, and time.
Explanation:
The main aim of writing is to inform the reader in a clear and comprehensible way. Any style of writing the writer adopts must be for the sole purpose of educating the readers more.
A writer makes use of transitional words to indicate a shift in topic or idea which is previously been discussed. This transitional word makes it easy for a reader to identify when the writer's mood had changed in writing.
A writer makes use of transition words to connect between ideas in order to make the readers to be engaged while they read.
