Anzelmo Corporation Invested in Jones Manufacturing by Purchasing a 10

Anzelmo Corporation invested in Jones Manufacturing by purchasing a 10% interest in the company.Anzelmo had no significant influence in Jones.Over time,Anzelmo acquired more shares in Jones,and in 2016,Anzelmo's president became a member of the board of directors when its ownership interest reached 30% of Jones.This change is ________.

A) an accounting principal change requiring retrospective adjustment
B) an accounting principal change requiring prospective adjustment
C) a correction of an error
D) an estimate change