need help creating a truth table

Question 4: (answers should be in detail, showing all steps) Your team got stuck on a space shuttle. Your only hope to come back to Earth is to fix the control circuit. Your control circuit has malfunctioning 4-bits (8-to-1) multiplexer, which must be replaced. Unfortunately, your spare parts box does not have the required multiplexer. Instead, it has only 4-bits (4-to-1) multiplexers and 4-bits (2-to1) multiplexers. Can you design and implement the desired 4-bits (8-to-1) multiplexer using the available components to save the shuttle and to save your team. Your design should include the following: Your high-level block diagram showing your inputs and outputs The truth Table of 4-bits (8-to-1) multiplexer The internal level- 2 block diagram of your system showing all the external and internal connections. High Level Block Diagram of 4-bits (8-to-1) multiplexer: Truth Table of 4-bits (8-to-1) multiplexer