Answer:
a) make well-reasoned conclusions and solutions ; & b) begin jotting down a rough draft right away to capture their ideas.
Explanation:
Effective Business message should be - complete, clear, concise, concrete, correct, courteous, coherent.
Rough draft is good for brainstorming & initial preliminary creation stage of business message. After having a bunch of ideas : its important to well arrange them in a coherent, clear way & giving complete, concise structure. This implies better understanding of conclusions, solutions.