Acquired characteristics are non-inheritable because they do NOT cause alteration in the

Explanation

The correct answer is Option D:DNA of germ cells.Acquired characteristics are changes in an organism's structure or behavior that occur during its lifetime and are not coded in the DNA. Therefore, they do not affect the DNA of germ cells, which are the cells involved in reproduction. As a result, these characteristics cannot be inherited by the next generation. Options A and B are incorrect because they focus on cytoplasmic composition, which is not the primary factor in genetic inheritance. Option C is incorrect because changes in the DNA of somatic cells do not affect the germ line and thus do not contribute to inheritance.