The single tab should be on the second line followed by the C. The tab and the C form a single word so do not break.

The two tabs should be at the start of the second line. The 'pre' and the C form a single word so do not break.

The two tabs should fit on the first line. The line can break at the space before the C.

The single tab should be on the second line by itself. The div allows breaking within words so the word formed by the tab and the C can be split.

The two tabs should be on the second line by themselves. The div allows breaking within words but it cannot split the two tabs inside a pre.

The two tabs should fit on the first line. The div allows breaking within words but it cannot split the two tabs inside a pre. The line can break at the space before the C.