An aluminum polycrystalline specimen is elastically compressed in plane strain. If the true strain along the compression direction is −2×10 ^−4, what are the other two longitudinal strains
A. 0 and 0
B. −2×10 ^−4 and 2×10 ^−4
C. 2×10 ^−4 and 0
D. 0 and −4×10 ^−4