To solve this problem, we need to determine which statement about Golden rice is true. Let's analyze each option:$\newline \bullet$Option 1: It is Vitamin A enriched, with a gene from daffodil.$\newline$ - Golden rice is genetically modified to produce beta-carotene, a precursor of Vitamin A, in the edible parts of rice.$\newline$ - The genes responsible for this trait are derived from daffodil (Narcissus pseudonarcissus) and a bacterium (Erwinia uredovora).$\newline$ - Therefore, this statement is correct.$\newline \bullet$Option 2: It is pest resistant, with a gene from Bacillus thuringiensis.$\newline$ - This statement describes Bt crops, which are genetically modified to express insecticidal proteins from Bacillus thuringiensis.$\newline$ - Golden rice is not modified for pest resistance, so this statement is incorrect.$\newline \bullet$Option 3: It is drought tolerant, developed using Agrobacterium vector.$\newline$ - While Agrobacterium is commonly used as a vector in plant genetic engineering, Golden rice is not specifically developed for drought tolerance.$\newline$ - Therefore, this statement is incorrect.$\newline \bullet$Option 4: It has yellow grains, because of a gene introduced from a primitive variety of rice.$\newline$ - The yellow color of Golden rice grains is due to the accumulation of beta-carotene, not because of a gene from a primitive rice variety.$\newline$ - Therefore, this statement is incorrect.$\newline$Based on the analysis, the correct option is Option 1: It is Vitamin A enriched, with a gene from daffodil.