The correct answer is C. To connect ideas in paragraphs or sentences
Step-by-step explanation:
In writing, a transitional word refers to a type of word or phrase that works as a transition or link between different ideas and therefore connects different sections of a sentence, sentences and even paragraphs. Examples of transitional words include words like first, furthermore, additionally, moreover, finally, similarly, as a result, etc. that clarify the relationship or connection between different elements including a relationship of cause and effect, sequence or order and guarantees the reader correctly understands the development of ideas in a text. Considering this, it can be concluded the main purpose of transitional words is "to connect ideas in paragraphs or sentences" as these words show the link between different elements.