The question is about identifying a high energy oxidizer from given options. In aerospace engineering and rocket propulsion, oxidizers are substances that provide oxygen for combustion. A high energy oxidizer is characterized by its ability to release a substantial amount of energy when it reacts with a fuel. Let's evaluate the options:
From these comparisons, fluorine stands out as a high energy oxidizer due to its extreme reactivity and energy release capabilities. Thus, the correct answer is:
fluorine