ST1.3 Adding vectors statements

$\vec{A}$, $\vec{B}$ and $\vec{C}$ are 3 vectors of magnitudes 3, 4 and 5 respectively. Identify which of the following statements are necessarily inconsistent with this information.
Incorrect
Correct
Correct
Correct
Incorrect
Correct

[There are 4 correct answers above. Select the ones you think are correct and press the "Check Your Answer" button to see if you are right.]