If [x] is the greatest integer less than or equal to x, what is the value of [-5.6]+[3.4]+[12.7]?
Choose the correct choice from the following
A) 3 B) 5 C) 7 D) 9 E) 10
You are asked what the closest lesser integer value to [x] is.   [-5.6] = -6.0   [3.4] = 3.0   [12.7] = 12.0   Therefore , answer is: -6.0 + 3.0 + 12.0= 
<gadget id="calculator">-6.0 + 3.0 + 12.0</gadget>
<output>9</output>
9.0   Option D.
<result>A</result>
If [x] is the greatest integer less than or equal to x, what is the value of [-5.6]+[3.4]+[12.7]?