Net redox reaction in acetyl coa formation and the citric acid cycle.
in the sequential reactions of acetyl coa formation and the citric acid cycle, pyruvate (the output from glycolysis) is completely oxidized, and the electrons produced from this oxidation are passed on to two types of electron acceptors.

Step 1: oxidation of Pyruvate to CO2

Step 2: Reduction of NAD+ to NADH

Step 3: Reduction of FAD to FADH2

The NAD+ and FAD are electron carriers needed during this process

A Diagram is attached for easy comprehension

you didn't give any options but heres what i can tell you: an inference is likely to change based on additional observations. the latter is something that you have seen or sensed using your sensory organs while the former is like a conclusion out from what you have observed.