Which eyebrow should the Sutrah ideally be aligned with according to the Sunnah?

The Sutrah and Warding Off Passersby (اتخاذ السترة ودفع المار)

• Only the right eyebrow.
• Only the left eyebrow.
• Either the right or the left eyebrow, keeping it slightly offset from the center.
• Directly between both eyebrows.