The primary focus on this piece of pottery is the line usage. How did the artist cause to look at the lines first?

A. The artist made them small and hard to see
B. The artist used a color that was similar to the background color.
C. The artist used only a few lines
D. The artist made the lines bold and covered the majority of the vessel with them

D. The artist made the lines bold and covered the majority of the vessel with them

To cause the viewer to look at the lines first on this piece of pottery, the artist most likely used option D: The artist made the lines bold and covered the majority of the vessel with them.

To determine how the artist caused the viewers to look at the lines first, we need to analyze the given options, A, B, C, and D.

A. The artist made them small and hard to see: If the lines were small and difficult to see, it is unlikely that they would be the primary focus of the piece. Therefore, this option can be eliminated.

B. The artist used a color that was similar to the background color: If the lines had a color similar to the background color, they would blend in and be less noticeable. This might lead the viewers' attention away from the lines. Thus, this option is also unlikely.

C. The artist used only a few lines: If the artist only used a few lines, they might not be prominent enough to draw the viewers' attention immediately. This option seems less likely as well.

D. The artist made the lines bold and covered the majority of the vessel with them: Making the lines bold and covering a significant part of the pottery vessel with them would create a strong visual impact. This would attract the viewers' attention and make the lines the primary focus. Therefore, this option is most likely the correct answer.

To summarize, the artist likely caused the viewers to look at the lines first by making them bold and covering the majority of the vessel with them (Option D).