Determine the Largest Open Intervals of the Domain Over Which $( 0 , \infty )$

Multiple Choice

Determine the largest open intervals of the domain over which the function is increasing, decreasing, and constant.
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A) Increasing $( 0 , \infty )$ ; Decreasing $( - \infty , 0 )$
B) Increasing $( - \infty , 0 )$ ; Decreasing $( 0 , \infty )$
C) Increasing $( - \infty , 0 )$ ; Decreasing $( - \infty , 0 )$
D) Increasing $( - \infty , 0 )$ ; Decreasing $( 0 , - \infty )$