The correct answer is: b.using action words such as “Developed interactive presentations delivered to audiences of up to 100”.
When describing one's abilities and experiences in a resume, it is best to use action words such as "developed", "delivered", "managed", etc. Option a. is incorrect because the use of personal pronouns is necessary and it deters from a professional writing tone. Option c. is also incorrect because using too many buzzwords, instead of action words can be confusing, and can come across as pompous. Finally, Option d is incorrect because using complete sentences and detailed paragraphs are inappropriate for resumes- which are optimally concise, and to the point.