A surveyor observes a zenith angle of $93^{\circ} 00^{\prime} 00^{\prime \prime}$ during a theodolite survey. The corresponding vertical angle is
- $-03^{\circ} 00^{\prime} 00^{\prime \prime}$
- $+03^{\circ} 00^{\prime} 00^{\prime \prime}$
- $-87^{\circ} 00^{\prime} 00^{\prime \prime}$
- $+87^{\circ} 00^{\prime} 00^{\prime \prime}$