Which of the following are table tags?

Table tags in HTML are used to create and structure tables. They include various tags to define the table structure, rows, headers, and data cells.

Option A: table, thead, tr, td - This is the correct answer. These tags are all used in defining a table in HTML:

table - Defines the table itself.

thead - Defines the header section of the table.

tr - Defines a table row.

td - Defines a table data cell.

Option B: colspan, table, tr - This is incorrect. While table and tr are table tags, colspan is an attribute, not a tag.

Option C: table, tt, tr, td - This is incorrect. While table, tr, and td are table tags, tt is not a table tag; it represents teletype text.

Option D: none of the mentioned - This is incorrect because Option A correctly lists table tags.