(Choose 1 answer)
To force clients to set a value, make the property nullable and set the Required attribute
A. [Required]public decimal? Price { get; set; }
B. [RequireAttribute(0, 999)]public decimal? Price { get; set; }
C. [RequiredRange(0, 999)]public decimal? Price { get; set; }
D. [RequiredNotNull]public decimal? Price { get; set; }
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