What is the value of the expression?\(\frac{{{{\left( {a - b} \right)}^3} + {{\left( {b - c} \right)}^3}\; + \;{{\left( {c - a} \right)}^3}}}{{3\;\left( {a - b} \right)\left( {b - c} \right)\left( {c - a} \right)}} = \;?\)

• A. 4
• B. 1
• C. 2
• D. 0