CS309 Lab# 2 Objective: Add to Lab #1 to allow for additional controls using a Multiplexer. Part 1 Using basic gates (NOTS, ANDs and ORs) build a two line 4-to-1 mux to add a security override to the circuit from Lab #1. A sample two line 4-to-1 multiplexer is provided in the figure below. This lab will not require the use of the enable (1en, 2en) that is given in the figure. Students should not implement that part of the circuit. 110 112 16 20 2eit 211 22 2131 Verify the function of the multiplexer. Part II Combine the circuit from Lab #1 with the multiplexer to provide for a set of additional security overrides per the following table. S1 SO Result O O Circuit functions as normal 01 D1 is allowed to open and D2 remains locked. 1 0 D1 remains locked and D2 is allowed to open 1 1 Both doors remain locked Verify the functionality of the new circuit