Identify a style rule that should be used to apply 1em of padding to a table caption, header, and data cells.
A) caption, header, data { padding: 1em; }
B) tc, th, td { padding: 1em; }
C) { padding: 1em; }
D) caption, th, td { padding: 1em; }

Question

Quizplus · Accepted Answer

Option A applies the padding to all elements with the classes caption, header, and data which is not correct as there are specific elements for each. 
Option B uses a different class name which is not quite understandable to someone who is seeing the code for the first time. 
Option C applies the style to all the elements in the HTML which is not recommended. 
Option D correctly selects the specific elements needed for the padding, which are the table caption, header cells, and data cells.

Identify a Style Rule That Should Be Used to Apply