❔ Inheritance or object references ? which one is more meaningful

public class PetService : BaseEntity
{
    public string Name { get; set; } = string.Empty;
    public string? Image { get; set; }
    public string Description { get; set; } = string.Empty;
}

public class ClinicService : BaseEntity
{
    public PetService PetService { get; set; } = default!;
    public decimal Price { get; set; }
}

public class ClinicService : PetService
{
    public decimal Price { get; set; }
}