Indicate whether each of the following descriptions better matches bone (B) or cartilage (C). Your answer would be a four-letter string composed of letters B and C only, e.g. CCCC.
( ) Its extracellular matrix is mainly composed of type I collagen and calcium crystals.
( ) Its extracellular matrix is made by osteoblasts.
( ) It grows by expansion (as opposed to surface apposition).
( ) Its cells are connected via canaliculi and form gap junctions.