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A body cools in a surrounding of constant temperature \( 30^{\circ} \mathrm{C} \). Its heat capacity is \( 2 \mathrm{~J} /{ }^{\circ} \mathrm{C} \). Initial temperature of the body is \( 40^{\circ} \mathrm{C} \). Assume Newton's law of cooling is valid. The body cools to \( 38^{\circ} \mathrm{C} \) in 10 minutes.
In further 10 minutes it will cool from \( 38^{\circ} \mathrm{C} \) to :
(A) \( 36^{\circ} \mathrm{C} \)
(B) \( 36.4^{\circ} \mathrm{C} \)
(C) \( 37^{\circ} \mathrm{C} \)
(D) \( 37.5^{\circ} \mathrm{C} \)
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