2. Which sentences expresses the idea most precisely and concisely? A. The Consul’s decision he made alone was life altering for many people.
B. The Consul’s decision, made alone, altered the lives of many people.

C. The Consul’s decision, being made alone, altered the lives of many people.
D. The decision of the Consul, made by him alone, altered the lives of many people.

A. The Consul’s decision he made alone was life altering for many people

Explanation:

The sentences expresses the idea most precisely and concisely is A. "The Consul’s decision he made alone was life altering for many people".

Precisely and concisely simply means a good writing style which involves proper usage of punctuation, sentence structure and grammar and also writing in a way that is concise and clear.

Writing Precisely and concisely involves the following:

1) Removing the unnecessary phrase

2) Use an clear and simple language

3)Must be precise

4) Elimination of extra and unnecessary noun.

the answer is irony!