What is the news item mainly about?
A.
The work of the two Nobel laureates sheds light on the tiny building blocks of life-cells.
B.
The work of the three Nobel laureates sheds light on the huge building blocks of life-cells.
C.
The work of the three Nobel laureates sheds light on the tiny building blocks of life-cells.
D.
The work of the three doctors sheds light on the tiny building blocks of life-cells.