Grammar Correctness Paragraph

In each of the following questions there are sentences that form a paragraph. Identify the sentence(s) or part(s) of sentence(s) that is/are correct in terms of grammar and usage (including spelling, punctuation and logical consistency). Then, choose the most appropriate option.

1. In 1849, a poor Bavarian imigrant named Levi Strauss
2. landed in San Francisco, California,
3. at the invitation of his brother-in-law David Stern
4. owner of dry goods business.
5. This dry goods business would later became known as Levi Strauss & Company.