What are the typical sources for gathering factual data for informal reports? check all that apply. printed material surveys and questionnaires electronic resources observation?

A good report is based on compact, precise, provable pieces of evidence. The typical sources for gathering factual data for informal reports include all in the list, the printed material, surveys and questionnaires, electronic resources and by observation. Printed material will help you to spot past performance and procedures used to explain former glitches. Data from collections of individuals can be made from using surveys, questionnaires, and inventories. Interviewing people directly involved with the issue creates outstanding main data.

answerchemical property;

b or d if i'm correct boi.