Final answer:
The Bootstrap class that applies a striped look to a table is 'table-striped', which enhances readability by alternating the background color of table rows.
Step-by-step explanation:
To apply a striped look to a Bootstrap table, you can use the class table-striped. This class adds zebra-striping to any table row within the <tbody> by changing the background color of alternate rows.
This feature is part of Bootstrap's table component customization options, enhancing the readability of large tables by helping to visually separate each row.