Question

what is the correct notation for this figure? b a b ab

Explanation:

Step1: Identify the figure

The figure is a single - point labeled B.

Step2: Analyze the options

The notation $\overleftrightarrow{AB}$ represents a line passing through points A and B. Option A is not relevant as there is no point A shown. The single - point B is correctly notated as just B.

Answer:

B. B