Answer:
Though he is not satisfied with his life and happy with it still he believe he would have done more with his life if he had realize earlier or known earlier
Explanation:Now it seems he has no chance in life again because it to late to change his fate or destiny.
D, The individual freedoms of people
Sentence fragment? Or flashback/ reminiscence. <span />
This part of the thesis would be considered the topic, more specifically it would be considered the <em>introduction of the topic to study</em> since the thesis revolves around, I assume, Isaac Newton and you are offering a brief 'summary' of his life and accomplishments.
However if the reason to mention Sir Isaac Newton is to support an idea or a statement this could be considered a subtopic. It is subjective and directly related to the field of study you're doing the thesis for.
Hope this helps!