What is the area of the triangle formed by points (0,0), (3,4), (4,3) ?

• A. 4 units
• B. <table><tr><td style="border-bottom:1px solid #000000;vertical-align:bottom;padding-bottom:2px;"><center>7</center></td><td rowspan="2">units </td></tr><tr><td style="text-align: center;">2</td></tr></table>
• C. <table><tr><td style="border-bottom:1px solid #000000;vertical-align:bottom;padding-bottom:2px;"><center>5</center></td><td rowspan="2">units </td></tr><tr><td style="text-align: center;">2</td></tr></table>
• D. <table><tr><td style="border-bottom:1px solid #000000;vertical-align:bottom;padding-bottom:2px;"><center>5</center></td><td rowspan="2">units </td></tr><tr><td style="text-align: center;">3</td></tr></table>