The Following Question Are Based on This Survey

Multiple Choice

The following question are based on this survey. The survey responses range from 1 (strongly disagree) to 5 (strongly agree) with 3 as a neutral point: 1.) In general my life is quite satisfactory.
2) ) I find myself eager and motivated for every new day.
3) ) I am happy for the most part.
4) ) I am not upset about anything important in my life.
A researcher conducted a study using this survey and found that for the most part, this survey of 4 items is internally consistent. What does this suggest?

A) The 4 items are asking about more or less the same thing.
B) The survey is high on internal validity.
C) The survey is high on internal reliability.
D) The survey valid and reliable.