Answer:
I believe it's "On the occasion corresponding to...."
Explanation:
<span>"3.The author's last name and page number(s) from the source must appear within the text of the paper" is correct. If the author is mentioned in the text, only the page number needs to be listed after. If not, then the author's last name and page number need to be listed. </span>
A bigwig refers to a person who is an expert in a particular area of study or field. Thus, a bacterial wig will be someone who is an expert in the area of bacteriology. Such a person will probably have the highest degree that is obtainable in that field and will be an authority to reckon with when it comes to the issue of bacteria.
