**(B) \(b_1\) and \(b_2\) bear a simple whole number ratio**

Law of multiple proportions state that "If two elements from more than one compound between them, the mass ratio of the second element, that combine with a fixed mass of the first element will always be the ratios of small whole numbers"

**Hence,** the correct answer will be, \(b_1\) and \(b_2\) bear a simple whole number ratio.