Final answer:
The number of delegates at a convention is determined by various factors such as the number of registered party voters in the state, and this system is true. These delegates discuss state-level issues, known as planks, that form the party's platform.
Step-by-step explanation:
The statement that the convention makes use of the delegate system, where the number of delegates depends on the number of members in the local, is true. Delegates are party members selected to represent a specific candidate at the party's state or national-level nominating convention. The number of delegates allotted to each state by political parties for their national nominating conventions is based on factors including the number of registered party voters. For example, larger states like California may send significantly more delegates to a national convention compared to smaller states like Wyoming due to the higher number of registered voters.
During these conventions, state-level concerns, known as planks, are brought to the table for discussion. These issues form the party's platform, which will be represented and advocated for by the candidates during their campaigns. The platform is central to the parties' election strategies and is an essential aspect for both nominees and outside groups, such as super PACs, to adhere to when campaigning.