C-04-Q117mediumsingle_mcqSize of pit for rose seedling planting is —a30×30×3030 \times 30 \times 3030×30×30 cmb60×6060 \times 6060×60 cm with 45 cm depthc100×100100 \times 100100×100 cmd80×80×8080 \times 80 \times 8080×80×80 cm