What is the attitude the author has towards eating meat

A．People who eat meat usually have weaker immune systems compared to those of vegetarians.
B．A lot of food and water are consumed in order to raise livestock.
C．90% of animals are raised in confinement.
D．Raising animals causes most of the destruction of nature.

A．all good examples of today's computer users
B．driving by greed, power, revenge, or some other malicious intent
C．to push programs beyond what they are designed to do
D．all dead