What of these languages is the second most spoken language in US?

You're asking about the second most spoken language in the United States. While it's tempting to think of Spanish as the obvious answer, it's actually English as a second language (ESL).

Here's why:

* Spanish is the most spoken non-English language in the US.

* ESL includes a wide range of people who speak English as a second language, representing many different native languages. This group is larger than any single non-English language, including Spanish.

So, while Spanish is the most popular language besides English, ESL takes the second spot in terms of overall number of speakers.