Identify the elements whose deficiency causes both necrosis and chlorosis. (A) \( \mathrm{Mg}, \...

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Identify the elements whose deficiency causes both necrosis and chlorosis.
(A) \( \mathrm{Mg}, \mathrm{K} \)
(B) \( \mathrm{Mo}, \mathrm{Ca} \)
(C) \( \mathrm{Fe}, \mathrm{Mn} \)
(D) \( \mathrm{Cu}, \mathrm{Co} \)
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