What word means to change an existing product

Jim is an aspiring graphic designer. he has already enrolled in a bachelors’ degree program for graphic design. along with this, he also wants to gain some knowledge on animation. what can he do to gain the additional knowledge? a. he can take an associate degree program. b. he can take a master’s degree program. c. he can enroll in online courses or programs. d. he can take another bachelor’s degree program in fine arts. e. he can work as an intern in an animation firm.