Yesterday, the entire family OPENED their gifts at the same time.
Structure in writing depends on what the objective - what the writer is trying to convey. If it is an argument, the structure will include a problem statement, supportive explanations and a conclusion. If it is a narrative, the structure can be subjective - the narration will go along with the observer throughout; or it can be chronological - a description based on time order. If it is simply writing something personal, then the structure can be flexible and free flowing.
This is an excerpt from the "Pardoner´s tale which is one of the Canterbury Tales written by Michael Young. Three young men depart to encounter Death and kill it. The adversary mentioned is "Death".
He saw the danger, but kept on advancing change.
I think it already is one because there it an independent clause (He saw the danger) and a dependent clause (but kept on advancing change).
I think that it would be a. and b. or a. and c.
