Calendars (Leap day) — On which year (day is Feb 29) was Yasir born? Statements: I. He was born between years 2005 and 2011. II. He will complete 4 years on February 29, 2012.

Introduction / Context:
We must identify the birth year for a Feb 29 birthday using leap-year logic and a completion-age cue.

Given Data / Assumptions:

• Yasir's birthday is Feb 29.
• I: Birth year ∈ {2006, 2007, 2008, 2009, 2010}. Among these, only 2008 is a leap year.
• II: He completes 4 years on Feb 29, 2012.

Concept / Approach:
Completion of 4 years on the same calendar date implies birth 4 years earlier on that date.

Step-by-Step Solution:

Verification / Alternative check:
2012 and 2008 are both leap years; the 4-year gap is consistent.

Why Other Options Are Wrong:

• A/C/E/D: II alone already identifies 2008; no combination is needed.

Common Pitfalls:
Confusing 'turns 4 on' with 'has completed 4 years sometime before'; the exact phrasing pins the date.

Final Answer:
B — Statement II alone suffices (Birth year = 2008).