Answer:
A. To begin, dip the paintbrush in water.
Explanation:
Transition signals are words that link words together and they are used to make connections to an idea in a written work. Examples of transition signals are "As a result of," "Consequently,", etc.
Therefore, the sentence that uses a transitional expression that signals a sequence is "To begin, dip the paintbrush in water"
This is because, the transition signals shows that there is about to be a sequence by listing out steps to do something.
