The correct option is B Sorghum
Palisade cells are plant cells located within the mesophyll in dicotyledonous leaves, right below the upper epidermis and cuticle. They are vertically elongated, a different shape from the spongy mesophyll cells beneath them in the leaf. Their chloroplasts absorb a major portion of the light energy used by the leaf.
Mustard, gram and soybean are all dicot plants and hence contain palisade cells in their leaves.
Sorghum, which is a monocot plant does not contain palisade cells.