Who is the 5th Brigade leader mentioned in the text?

The correct choice identifies Colonel Mark Olsen as the 5th Brigade leader. In a JROTC context, brigade leaders play a crucial role in overseeing the operations, training, and administration of their brigades. Colonels typically hold significant responsibilities, including leadership development, mentorship of cadets, and ensuring that the program aligns with Army values and standards.

In this case, the naming of Colonel Mark Olsen indicates his position in the organizational structure of JROTC, reflecting the importance of experienced and qualified leaders who guide the program and its participants. The other individuals mentioned might hold significant roles within the military or related fields, but they do not pertain to the specific leadership of the 5th Brigade, making Colonel Mark Olsen the correct answer.