Given , y= 2log b X which of the following statements is/are true about the function and its graph?

/in /by

Given , y= 2logbX which of the following statements is/are true about the function and its graph?

   I. b>0

   II. b cannot = 1

   III. The x-axis is a horizontal asymptote.

   IV. The y-axis is a vertical asymptote.

A. II,III and IV only

B.I, II, and IV onlyy

C. I and III only

D. I only

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