Step 1: Read Ajay's behaviour carefully.
Ajay faces multiple failures yet continues working hard. More importantly, he treats each failure as a learning opportunity rather than a reason to stop.
Step 2: Eliminate Procrastination.
Procrastination means delaying tasks unnecessarily. Ajay is doing the exact opposite - he keeps working persistently despite setbacks, so procrastination does not apply.
Step 3: Eliminate Overconfidence.
Overconfidence means having an unrealistically high opinion of one's abilities, often ignoring feedback or risks. Ajay is actually learning from failures, which is the sign of a grounded, not overconfident, person.
Step 4: Evaluate Manifestation.
Manifestation refers to the practice of attracting desired outcomes through strong belief and visualisation. While Ajay believes in his goal, the key aspect here is how he responds to failure, not simply that he believes he will succeed.
Step 5: Identify Positive Attitude.
A positive attitude means looking at a setback as a stepping stone rather than a stumbling block - finding the lesson in every difficulty and using it to grow. This is exactly what Ajay does when he sees failure as a learning opportunity.
Step 6: Confirm the match.
The quality of self-management that turns failures into fuel for growth is a positive attitude.
\[ \boxed{ \text{(B) Positive attitude} } \]