Answer:
Construct counterarguments to the opposition’s arguments.
Organize her arguments, starting with her strongest argument.
Step-by-step explanation:
These are the things that Jennie should do in order to prepare for her argument. Jennie is arguing for the proposition team, and to begin, she must organize her arguments well, starting with her strongest argument. Once she has presented these, the opposition will present their own. Jennie should also be prepared to construct counterarguments to the opposition's arguments.