An encyclopedia is an example of a select one: a. online database b. reference work c. journal d. periodical

B). Reference work.

Explanation:

Reference works are described as a periodical work or book that are primarily intended to provide factual information to the readers and to which they can refer for established/confirmed information or facts. Such works are not meant to be read from the introduction or beginning to the end but rather a compendium intended to make it convenient for reference either in pieces for varied purposes or as a whole.

As per the question, 'encyclopedia' exemplifies a 'reference work' as it is used a compendium to which people refer for information and for ensuring/confirming facts. It(encyclopedia) offers a vast range of subjects and domains along with their varied aspects that propose a flood of information out of which the readers could refer to as per their interests and subjects. Thus, option B is the correct answer.

quite an interesting way to teach topic sentences, because the answer to this question is the best definition of a topic sentence that one can present, it is as if answering the questions taught you how to do it, this is some real teaching, it is terribly well-done.

the topic sentence in this paragraph is:

topic sentences writers stay on track and keep a paragraph from becoming an aimless collection of sentences about an idea.

which incidentally tells you what a topic sentence should be.

the answer is mary made mudpies on monday.

remember alliteration is the occurrence of the same letter or sound at the beginning of adjacent or closely connected words.