Based on the information provided about the brochure from the Smith-Owen corporation, here are the answers to your questions:
The brochure is mostly about: A job opportunities at a company (if that’s a focus of the brochure; if not, the most accurate option would need to reflect the content provided).
According to the passage, which skill does a salesperson need? C communication
What is NOT a way to contact the Human Resources department? This cannot be determined without more context from the brochure, but typically answer options could be: D by mail (if it lists the other options as methods of contact).
Please confirm with the content of the brochure for accuracy!