It's Known That Over a Particular Closed Gaussian Spherical Shell $- 23.5 \mathrm {~T} \cdot \mathrm { m } ^ { 2 }$

Multiple Choice

It's known that over a particular closed Gaussian spherical shell, the upper hemisphere has a net magnetic flux of $- 23.5 \mathrm {~T} \cdot \mathrm { m } ^ { 2 }$ From this, the net magnetic flux of the lower hemisphere must be

A) $- 23.5 \mathrm {~T} \cdot \mathrm { m } ^ { 2 }$
B) $+ 23.5 \mathrm {~T} \cdot \mathrm { m } ^ { 2 }$
C) $0 \mathrm {~T} \cdot \mathrm { m } ^ { 2 }$
D) $- 47.0 \mathrm {~T} \cdot \mathrm { m } ^ { 2 }$