• Statement (I) is False: In acrocentric chromosomes, the centromere is located near one end of the chromosome, producing one very short arm ($p$) and one long arm ($q$). It is in metacentric chromosomes that the centromere is positioned at the center, yielding equal arms.
• Statement (II) is True: In sub-metacentric chromosomes, the centromere is positioned slightly off-center, resulting in arms of unequal length ($p$ arm shorter than $q$ arm) that appear L-shaped during anaphase.
• Conclusion: Statement (I) is false but Statement (II) is true.

Correct option: (4) Statement (I) is false but Statement ({I) is true.