The correct option is A Ladyfinger
Yellow vein mosaic disease is found in okra plants or ladyfinger. The symptoms include alternate green and yellow patches, vein clearing and vein chlorosis of leaves. The yellow network of veins is very conspicuous and vein and veinlets are thickened. In severe cases, the chlorosis may extend to the interveinal area and may result in complete yellowing of leaves. Fruits are dwarfed, malformed and yellow-green.