What does an "indefatigable" person exhibit?

An "indefatigable" person is characterized by persistent energy and vitality, demonstrating an ability to maintain an unyielding and tireless effort over the long term. Such individuals do not become fatigued or easily discouraged, allowing them to pursue their goals with relentless commitment and resilience.

This term usually refers to someone who tackles challenges with unwavering determination, continuing to push forward despite obstacles or the passage of time. The idea of indefatigability suggests an impressive stamina for work or activity, making B the most fitting description of what an indefatigable person exhibits. The other options suggest temporary or lackadaisical attitudes towards energy and perseverance, which do not align with the robust nature of being indefatigable.