Which table shows a constant of proportionality of 2 for the ratio of string instruments to percussion instruments? A 2-column table with 3 rows. Column 1 is labeled String with entries 2, 4, 6. Column 2 is labeled Percussion with entries 3, 6, 9. A 2-column table with 3 rows. Column 1 is labeled String with entries 2, 4, 6. Column 2 is labeled Percussion with entries 5, 10, 15. A 2-column table with 3 rows. Column 1 is labeled String with entries 2, 4, 6. Column 2 is labeled Percussion with entries 1, 2, 3. A 2-column table with 3 rows. Column 1 is labeled String with entries 2, 4, 6. Column 2 is labeled Percussion with entries 4, 8, 12.