Addition Problem: Solving 5 Units Plus 6 Units

To solve this problem, we'll follow these steps:

• Identify the two numbers to be added: 5 and 6.
• Add these two numbers together using basic arithmetic.

Let's work through the solution step-by-step:
We need to calculate $5 + 6$. The operation involves simple addition:
$5 + 6 = 11$

Therefore, the result is $11 \text{ units}$.

Considering the provided multiple-choice answers, we check:

• corresponds to

  $11 \text{ units}$

The correct choice is Option 3.