Answer:
The correct answer is option C-chromatin.
Explanation:
DNA is a large molecule which has to fit in a small organelle called nucleus which starts with forming a more compact and condensed structure with the help of proteins called "histones".
DNA form a loose structure with these proteins which appears as a diffused structure in a cell called chromatin. This chromatin is the simplest and basic appearance of DNA which appears as 'beads on a string".
Thus, option C-chromatin is the correct answer.