The area of a triangle is with base 4m and height 5m?  Select the correct option:
A) 11 B) 10 C) 787 D) 122 E) 12
1/2 * 4 * 5= 
<gadget id="calculator">1/2 * 4 * 5</gadget>
<output>10</output>
10 m2   Answer: 10
<result>B</result>
The area of a triangle is with base 4m and height 5m?