Question

she apologised to the whole nation for not being able to win the gold (Begin with As she...)​

Answer 1

As she had not won the gold medal she apologized.

Answer 2

As she was not able to win the gold, she apologized to the whole nation.

* The given sentence is a simple one and the newly formed one is complex.

* Simple sentences have only a single independent clause.

* Complex sentences contain an independent clause along with a dependent one.

* The other type of sentence is compound.

Here, two clauses are joined by any joining word or conjunction.