Omar copied the steps below to construct a line segment through P that is parallel to the given line segment AB. Step 1: Draw line r throught point P that intersects AB.
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Step 2: Label the intersection of line r and AB point Q.
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Step 3: Place your compass on point Q, set the width of the compass to point P, and construct an arc that intersects AB. Label that point of intersection point C.
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Step 4: [Missing step]
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Step 5: Using the same setting, place the compass on point C, and construct an arc above AB that intersects the arc drawn in step 4. Label this intersection point D.
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Step 6: Draw PD.

During class Omar got distracted and left a step between 3 and 5 out. Which of the following statements is the missing step?

A. Step 4: Label the intersection between AB and the second arc as S.
B. Step 4: Using the same setting, place the compass on point P, and construct an arc above AB.
C. Step 4: Using the same setting, place the compass on AB and draw an arc above it.
D. Step 4: Place the compass in point Q and draw an arc above AB.