• The human body contains 46 chromosomes in total, which are distributed across 23 pairs of chromosomes.
• A chromosome is a structure that resembles a thread and is typically found in the cell's nucleus. The DNA is securely wound around a protein known as histones to create each chromosome.
• Only the chromosome's structure is supported by this histone. When a cell is not dividing, the chromosomes are not seen in the nucleus. 
• When the DNA gets firmly packed during cell division, the DNA that makes up that chromosome becomes visible.
• In general, a chromosome's centromere position determines the form and personality of the chromosome. The position of the genes on the genome is also influenced by the centromere's location.

Hence, option B is the correct answer.