Answer:
tech A only
Explanation:
Technician A is right because a cracked exhaust manifold allows more oxygen into the exhaust stream, which affects oxygen sensor voltage. Technician B is wrong because a clogged air filter raises Hydrocarbons (HC) and also affects O2 (Oxygen) and CO (Carbon Monoxide) levels.
A device that provides all of the functionality listed in your question, would be a MFP (Multi-Fuction Printer)
Answer:
My answer could not be submitted because of some signs and symbols in my solution.
So, I've added the answer and a comprehensive explanation as an attachment.
Note that the question is answered using Python programming language.
Explanation:
Lines that start with # are used to explain the program
<em>See attachment</em>
They use multiple techniques to help children.