The maxims autrefois acquit and autrefois convict both mean the same person cannot face a second trial for an offence already decided.
Since only one provision addresses re-trial after a prior conviction or acquittal, the correct answer is Sec.300.
This question can also be approached by first recalling the constitutional root of the principle and then finding its statutory counterpart.
Tracing the principle from its constitutional root to its fuller statutory expression leads to the same provision.
Therefore, the correct answer is Sec.300.