which of the following is the best way to write the underlined portion of this sentence? if we were teenagers at the time these licenses signified our passage to adulthood

If we were teenagers at the time, these licenses signified our passage to adulthood.

The underlined portion of the sentence can be improved by rephrasing it. Here are a few alternative suggestions:

1. "if we were teenagers back then, these licenses symbolized our transition into adulthood."
2. "if we were teenagers during that period, these licenses represented our arrival into adulthood."
3. "if we were teenagers at that moment, these licenses marked our journey into adulthood."
4. "if we were teenagers then, these licenses indicated our rite of passage into adulthood."
5. "if we were teenagers at that point, these licenses denoted our progression into adulthood."

Choose the option that best fits the intended meaning and writing style of your overall text.