Question

Which of the following is an independent clause?

Unless you hear from me
When the children grow up
Amanda and Scott
Tanya likes to read

Answer 1

The independent clause of the group is "Tanya likes to read," because it could be a complete sentence if standing alone.  

Answer 2

"Tanya likes to read" is an example of independent clause since it is the only one that has a complete meaning.

Dependent clauses are the ones that cannot stand alone. They need another clause to complete the meaning. On the contrary, independent clauses can stand alone since they make sense by themselves.