In the figure given, \[a||b\] and \[c||d\]. If \[\angle 1={{75}^{o}},\] what is the measure of \[\angle 3\]?

• A.  \[{{105}^{o}}\]                  
• B.  \[{{105}^{o}}\]
• C.  \[{{75}^{o}}\]                   
• D.         \[{{100}^{o}}\]