Three of the following statements regarding cell organelles are correct while one is wrong. Which one is wrong [AIIMS 2005]

• A. Lysosomes are double membraned vesicles budded off from golgi apparatus and contain digestive enzymes
• B. Endoplasmic reticulum consists of a network of membranous tubules and helps in transport, synthesis and secretion
• C. Leucoplast are bound by two membranes lack pigment but contain their own DNA and protein synthesizing machinery
• D. Sphaerosomes are single membrane bound and are associated with synthesis and storage of lipids