Maria phoned Sierra last night and Christine phoned Jan last night. 
OPTIONS:
- Maria called Jan last night.
- Christine called Jan last night.
Christine called Jan last night.

When it comes to calculating figures and numbers, Christine is an expert, but Jennifer is not because 
OPTIONS:
- Christine is a first grader.
- Jennifer is a first grader.
Jennifer is a first grader.

The pool cue used by Emily at the billiards hall was covered with more chalk than the one used by Betty; consequently, 
OPTIONS:
- Emily was practically incompetent when breaking.
- Betty was practically incompetent when breaking.
Betty was practically incompetent when breaking.