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The temperature T(t) of a body at time t...

The temperature `T(t)` of a body at time `t=0` is `160^(@)F` and it decreases continuously as per the differential equation `(dT)/(dt)=-K(T-80)` ,where `K` is a positive constant.If `T(15)=120^(@)F` ,then `T(45)` is equal to

A

`90^@F`

B

`85^@F`

C

`80^@F`

D

`95^@F`

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