Can someone me pls and if u do u will be the best person out in the whole world

Iopened the door quietly,then stood in the doorway rewrite using ..ing participle

Need some on this. which answer is it?

Which of the following statements is most accurate? a. effective communication skills are not as important as technical skills. b. good communication skills can you in the classroom, on the job, and in your personal life. c. communicating effectively is not related to job success. d. learning to communicate effectively cannot be taught because communication skills are inborn.