\textbf{203.} The overall trend of reactivity of the first four elements from the left of the second period of the periodic table (alternating) against oxygen at room temperature is which of the following? Their group numbers in order are:
\textit{[Figure: Four graphs showing reactivity vs. group number (1, 2, 13, 14) with different zigzag patterns labeled (1), (2), (3), (4)]}
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