Multi-choice problem: Continue writing the next sentence in this paragraph:

A woman is seen speaking to the camera and shows off a wooden table. she

Available choices:
a). then demonstrates how to insert the tools and hold the pieces correctly.;
b). then sands down the table and dips a brush into paint.;
c). begins wiping down the table with plastic marker and scrubbing it with a rag.;
d). continues speaking while demonstrating different tools to the camera and showing how the table works.;
b).