A) $A D _ { 1 } \text { would shift to } A D _ { 2 } \text {. }$

Multiple Choice

A) $A D _ { 1 } \text { would shift to } A D _ { 2 } \text {. }$
B) $A D _ { 1 } \text { would shift to } A D _ { 3 } \text {. }$
C) $A D _ { 1 } \text { would shift to } A D _ { 4 } \text {. }$
D) $\mathrm { AS } _ { 2 } \text { would shift to } \mathrm { AS } _ { 1 } \text {. }$