The staff reading taken on a workshop floor using a level is $0.645 \mathrm{~m}$. The inverted staff reading taken to the bottom of a beam is $2.960 \mathrm{~m}$. The reduced level of the floor is $40.500 \mathrm{~m}$. The reduced level (expressed in $\mathrm{m}$ ) of the bottom of the beam is

(A) 44.105

(B) 43.460

(C) 42.815

(D) 41.145

The staff reading taken on a workshop floor using a level is $0.645 \mathrm{~m}$. The inverted staff reading taken to the bottom of a beam is $2.960 \mathrm{~m}$. The reduced level of the floor is $40.500 \mathrm{~m}$. The reduced level (expressed in $\mathrm{m}$ ) of the bottom of the beam is

(A) 44.105

(B) 43.460

(C) 42.815

(D) 41.145

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