391. Illustration D011NG below represents the geographic location of a vessel and the radar presentation at the same time. Which statement is TRUE?

391. Illustration D011NG below represents the geographic location of a vessel and the radar presentation at the same time. Which statement is TRUE?

Ship No. 2 is not detected due to the side lobe effect of radar reflecting from the mountain.
A tangent bearing of the headland to the south-southeast is corrected by subtracting one-half of the beam width.
Small island is not detected due to the multiple echo effect from the mountain.
Ship No. 1 does not appear as an individual target due to the effect of beam width.

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