The two lenses shown are illuminated by a beam of parallel light from the left. Lens \( B \) is ...

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The two lenses shown are illuminated by a beam of parallel light from the left. Lens \( B \) is then moved slowly toward lens \( A \). The beam emerging from lens \( B \) is:
(a) Initially parallel and then diverging
(b) Always diverging
(c) Initially converging and finally parallel
(d) Always parallel
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