Final answer:
Freewriting is a brainstorming technique where the writer writes uninterruptedly for a set time about ideas related to a topic without worrying about grammar or organization to get creative juices flowing and capture subconscious thoughts.
Step-by-step explanation:
The best explanation of freewriting is that it is a brainstorming technique where the writer writes for a limited time about ideas related to the topic without concern for grammar, as stated in option b). This method involves setting a time limit, such as 10 minutes, and continuously writing down everything that comes to mind concerning the topic. The key is to write without worrying about organization, grammar, spelling, punctuation, or revising. The objective of freewriting is to get your thoughts and ideas flowing, allowing you to capture any subconscious thoughts. This technique can be a particularly effective way to start a writing project, as it can help uncover your feelings toward a topic and generate material that can later be refined and structured.