The correct reading is ぶんせき (on'yomi-on'yomi). 分 (ぶん) and 析 (せき) both use their standard on'yomi. Misreadings such as ぶんぜき involve incorrect rendaku, while ふんせき misreads 分. The kanji 析 (axe radical) hints at breaking things apart. This term means "analysis," the process of breaking down a subject into its components to understand their relationships.

正しい読み方はぶんせき（音読み-音読み）です。分（ぶん）と析（せき）は標準的な音読みです。ぶんぜきは不適切な濁音化、ふんせきは分（ぶん）の読み間違いです。物事を細かく分け、その構成要素や関連を明らかにする行為を指します。