Identify the correct order of the following major technological changes in the development of computers, based on the first to fourth generation. Choose the correct answer from the options given below.

The first generation used vacuum tubes, statement 3, as their switching and amplifying elements.

The second generation used transistors, statement 1, which were smaller and more reliable than tubes.

The third generation used integrated circuits, statement 4, packing many components onto one chip.

The fourth generation used the microprocessor, statement 2, placing a whole processor on a single chip.

Any order starting with transistors or the microprocessor reverses this historical progression.

Each generation shrank size and cost while raising speed and reliability sharply.