As Research for a Science Class,seventh Graders at a Grade

Multiple Choice

As research for a science class,seventh graders at a grade school in Ontario collected data on weather patterns.For each day in January of 2011,they recorded the high and low temperatures,precipitation,humidity,and wind speed.

A) Who: All days in January of 2011;Cases: Each day is a separate case;What: High and low temperatures,precipitation,humidity,and wind speed;When: January 2011;Where: Ontario;Why: Research for a science class;How: Not specified.
B) Who: Seventh graders;Cases: Each student is a separate case;What: High and low temperatures,precipitation,humidity,and wind speed;When: January 2011;Where: Ontario;Why: Research for a science class;How: Not specified.
C) Who: All days in January of 2011;Cases: Each student is a separate case;What: High and low temperatures,precipitation,humidity,and wind speed;When: January 2011;Where: Ontario;Why: Research for a science class;How: Watching the weather channel.
D) Who: All days in January of 2011;Cases: Each day is a separate case;What: High and low temperatures;When: January 2011;Where: Ontario;Why: Research for a science class;How: Watching the weather channel.
E) Who: Teachers;Cases: Each day is a separate case;What: High and low temperatures,precipitation,humidity,and wind speed;When: January 2011;Where: Grade school;Why: Research for a science class;How: Reading the newspaper weather predictions.