The factor which affects the same latitude but different weather conditions is elevations from the sea level. Thus, the correct answer is C.
The climatic conditions of any place, its topography, and vegetation, the elevation of the place from the sea, presence of water bodies that fluctuates temperatures are some of the reasons which affect weather conditions.
The elevation above sea causes two cities with similar latitude and different weather conditions because the similar latitude causes a similar distance from the pole and equator so other options are inappropriate.
Therefore, the option C elevation above the sea is correct.
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