The value of \[a\times \frac{1}{a}=1=\frac{1}{a}\times a\] is equal to

• A. 1
• B. \[\frac{1}{a}\]
• C. \[a\times (b+c)=a\times b+a\times c\]
• D. \[(b+c)\times a=b\times a+c\times a\]