If a=30,

The segment FA will be at an angle of 30 degree from the point E on line segment EF

The segment FB will be at an angle of (30+60)90 degree from the point E(on the line segment EF)

The segment FC will be at an angle of (30+60+30) or 120 degree from the point E(on the line segment EF)\

Similiarly the line segment ED will be at an angle of 90 degree from the point F(on the line segment EF)

FB is parallel to ED and FB is 120 degree from point E

So these line segments will never meet even if extended indefinitely upward.

Hence, only line segment FA will intersect at ED

(Option B)
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