Final answer:
The transition word among the provided options is 'although', which helps connect ideas by showing contrast in a piece of writing.
Step-by-step explanation:
The word that can be used as a transition among the options provided is 'although'. Transitions are words or phrases that provide a connection between ideas, sentences, and paragraphs.
Transitions help to make a piece of writing flow more smoothly. The word 'although' indicates contrast and can be used to introduce a statement that makes the main point seem surprising or unexpected in contrast to the previous statement.