In the Course of Measuring Fuel Content Values, a Reaction $\rarr$

In the course of measuring fuel content values, a reaction for the conversion of crude oil fuel into water and carbon dioxide is carried out in two steps Crude fuel oil + oxygen $\rarr$ CO(g) + H₂O
CO(g) + oxygen $\rarr$ CO₂(g) The net reaction taking place is: crude fuel oil + oxygen $\rarr$ CO₂(g) + H₂O. A large fraction of the raw material is converted in one step, while the second step is to collect the fraction that was just partially burned the first time. For the overall or net process, which statement below is always true?

A) $\Delta$ H is independent of the time interval between the two steps, but dependent on the fraction that had to be converted in two steps.
B) $\Delta$ H is dependent on the time interval between the two steps, but dependent on the fraction that had to be converted in two steps.
C) $\Delta$ H is independent of the time interval between the two steps and also independent of the fraction that had to be converted in two steps.
D) $\Delta$ H is dependent on the time interval between the two steps, but independent of the fraction that had to be converted in two steps.
E) $\Delta$ H is independent of the time interval between the two steps, but dependent on the time required for completion of the entire process.