Explain Why Caprylic Acid,C $\mathrm { H } _ { 3 }$

Explain why caprylic acid,C $\mathrm { H } _ { 3 }$ (C $\mathrm { H } _ { 2 }$ $) 6$ COOH,dissolves in a 5 percent aqueous solution of sodium hydroxide but caprylaldehyde,C $\mathrm { H } _ { 3 }$ (C $\mathrm { H } _ { 2 }$ $) 6$ CHO,does not.

A) With two oxygens the caprylic acid is about twice as polar the caprylaldehyde.
B) The caprylaldehyde is a gas at room temperature.
C) The caprylaldehyde behaves as a reducing agent,which neutralizes the sodium hydroxide.
D) The caprylic acid reacts to form the water soluble salt.