Answer:
D. It is the year when America's true commitment to the war began.
Explanation:
On February, President Johnson ordered the bombing of targets in North Vietnam, after that, he launched a three-year campaign of continuous bombings. That was known as "Operation Rolling Thunder", this is considered the first sustained American assault in North Vietnam. On the successive months, thousands of ground troops were sent to fight.
I think perhaps the quote is referring to the fact that we don't always gain recognition for our actions? Someone of equal status and beliefs could stumble upon the lottery of life just by simply being there, or an error, while we remain unrecognized and alone? <span />
C. filled societies with strong competitor