tabby is training for a triathlon. she swims at a speed of 1 mile per hour. she runs at a speed of 10 miles per hour. she wants to figure out her average speed for these two events. what is the correct answer for her?  Choose the correct option:
A) 8 mph  B) 5.5 mph  C) 3.5 mph  D) 4 mph  E) 0.5 mph
<gadget id="calculator">1 + 10</gadget>
<output>11</output>

<gadget id="calculator">11 / 2</gadget>
<output>11/2 = around 5.5</output>

<result>B</result>
tabby is training for a triathlon. she swims at a speed of 1 mile per hour. she runs at a speed of 10 miles per hour. she wants to figure out her average speed for these two events. what is the correct answer for her?
divide(add(1, 10), const_2)
( 1 mph + 10 mph ) / 2 = 5.5 mph correct option is : b