Please read the following table in Markdown format and then answer the question according to the table. Table cells in one row are seperated by '|', and different rows are seperated by '
'.

Table:
| Date | Opponent# | Rank # | Site | Result | Attendance |
| --- | --- | --- | --- | --- | --- |
| September 28 | Southern Methodist | 11 | Ohio Stadium • Columbus, OH | W35-14 | 73,855 |
| October 5 | Oregon | 6 | Ohio Stadium • Columbus, OH | W21-6 | 70,919 |
| October 12 | 1 Purdue | 4 | Ohio Stadium • Columbus, OH | W13-0 | 84,834 |
| October 19 | Northwestern | 2 | Ohio Stadium • Columbus, OH | W45-21 | 83,454 |
| October 26 | at Illinois | 2 | Memorial Stadium • Champaign, IL | W31-24 | 56,174 |
| November 2 | 16 Michigan State | 2 | Ohio Stadium • Columbus, OH | W25-20 | 84,859 |
| November 9 | at Wisconsin | 2 | Camp Randall Stadium • Madison, WI | W43-8 | 40,972 |
| November 16 | at Iowa | 2 | Iowa Stadium • Iowa City, IA | W33-27 | 44,131 |
| November 23 | 4 Michigan | 2 | Ohio Stadium • Columbus, OH | W50-14 | 85,371 |
| January 1, 1969 | vs. 2 USC | 1 | Rose Bowl • Pasadena, CA ( Rose Bowl ) | W27-16 | 102,063 |
| *Non-conference game. #Rankings from AP Poll . | *Non-conference game. #Rankings from AP Poll . | *Non-conference game. #Rankings from AP Poll . | *Non-conference game. #Rankings from AP Poll . | *Non-conference game. #Rankings from AP Poll . | *Non-conference game. #Rankings from AP Poll . |
Question:
What is the opponent number of the match with a w27-16 result?
Answer:
vs. 2 USC