(B) human sperm is a haploid cell $(n)$.In humans,the diploid number of chromosomes is $46$ $(2n = 46)$,which consists of $44$ autosomes and $2$ sex c

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(B) human sperm is a haploid cell $(n)$.In humans,the diploid number of chromosomes is $46$ $(2n = 46)$,which consists of $44$ autosomes and $2$ sex chromosomes ($XX$ or $XY$).During meiosis,the chromosome number is halved.Therefore,a human sperm contains $22$ autosomes and $1$ sex chromosome (either $X$ or $Y$).