Let g (x) = {① e ^ x, X ≤ 0, ② LNX, x > 0, then the solution set of inequality g (x) ≤ 1 about X is () A.（-∞,1] B.(-∞,e] C.[o,e] D.[0,1]

Choose B
This problem is to find the independent variable x whose range is ≤ 1 in the solution set
E ^ x is an increasing function. If e ^ x ≤ 1, the solution is x ≤ 0; if LNX ≤ 1, the solution set is x ≤ E; if we combine with the definition fields of X in G (x), we can get the result of B selection
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