Which branch of philosophy deals with knowledge, its structure, method and validity?

Which branch of philosophy deals with knowledge, its structure, method and validity?

فلسفہ کی کون سی شاخ علم، اس کی ساخت، طریقہ کار اور اعتبار سے متعلق ہے؟
Explanation
  • Epistemology deals with knowledge, its structure, method, and validity.
  • It focuses on the nature and scope of knowledge and how it can be acquired and validated.