The correct answer is letter c. exhaust manifolds. Most V-type engines use two exhaust manifolds, one attached to each cylinder head. An exhaust manifold in automative engineering refers to the collection of the exhaust gases from different cylinders into another single pipe.
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You, in turn, might end up getting hurt or bullied.
Concurrent multiple program execution, opposite to pipeline execution where it needs to in a sequential or in order of execution. You can also say parallel process programming.