The miniaturization of which of the following inventions allowed integrated circuits to get smaller, leading to the creation of the microprocessor?.

a. microchip

b. electronic circuit

c. vacuum tube

d. transistor

(B) electronic circuit

Microprocessors tech. took a once bulky series of miniaturized powerful electronic circuitry so that they can be able to fit into devices like cell phones, computers and other popular devices. Technically, IC is a microscopic of electronic circuits diffused or implanted on top of a chip or semiconducting material like silicon.