Answer:
A. clearly pronouncing words - Effective Public-Speaking Strategy
B. using informal language - Ineffective Public-Speaking Strategy
C. making eye contact - Effective Public-Speaking Strategy
D. reading directly from notes - Ineffective Public-Speaking Strategy
E. respecting the opposition - Effective Public-Speaking Strategy
F. pacing in front of audience - Effective Public-Speaking Strategy
Explanation:
Public speaking is simply an act or can be a process of presenting speech to an available live audience. For effective public speaking, the speaker must learn to clearly pronouncing words, make eye contact, respect the opposition, pace in front of audience, etc.
Also, the speaker must endeavour to carry his audience along during his presentations.
But reading directly from notes and using informal language are ineffective strategies.