Parallel vertical lines

Cherry

New member
#1
A dollar sign is formed by drawing two parallel vertical lines through the letter S, as shown. These lines cut the letter S into 7 pieces. What is the minimum total number of parallel vertical lines that are needed to cut the letter S into exactly 154 pieces?
微信截图_20180604164439.png
\(
\textbf{(A) }23 \qquad
\textbf{(B) }44 \qquad
\textbf{(C) }22 \qquad
\textbf{(D) }51 \qquad
\textbf{(E) }70 \qquad
\)
 
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