Add √19 + √19

To add \( \sqrt{19} + \sqrt{19} \), you can think of it as:

\[
2 \cdot \sqrt{19}
\]

This is equivalent to:

\[
\sqrt{19} + \sqrt{19} = 2\sqrt{19}
\]

So among the choices provided, none look explicitly like \( 2\sqrt{19} \). However, if we were to analyze the options closely, the option \( 2 \sqrt{19} \) can also be represented as:

\[
\sqrt{4 \cdot 19} = \sqrt{76}
\]

However, that is not in your given options.

If we examine the closest to the answer or the structure:

- \( 2 \sqrt{19} \) (which is equal to or could be expressed in terms of the sum of square roots you proposed)

But for the added answer of \( \sqrt{38} \) or others, you might just conclude that:

The correct answer written conventionally, closest to the representation, would be interpreted as:

**2 Start Root 19 End Root**.

Thus, the answer is:

**2 Start Root 19 End Root**.