Answer:
prevalence → verb → to prevail
potentially → noun → potential
vulnerable → noun → vulnerability
accessible → verb → to access
censorship → adverb → censorious
volunteer → adjective → voluntary
dubious → noun → dubiousness
system → adjective → systematic
regular → verb → to regulate
suitability → verb → to suit
Explanation:
In the English language, especially when it comes to words originated from Latin, it is common to change words with the addition or removal of certain parts -- the affixes. Notice, for example, that to transform "vulnerable" into a noun, we added a suffix (an ending): "vulnerability". On the other hand, to transform "censorship" into an adverb, we changed suffixes: "censorious". It is important to know and understand the use of affixes. They are a helpful means to figure out the meanings of new words.
The choice that correctly identifies the type of verb traveling is in each of the sentence above is option A. Sentence 1: gerund, sentence 2: participle.
Sentence 1 uses the word "Traveling" as a gerund. A gerund is a word that takes the verb form -ing, but functions as a noun in the sentence. In sentence 2, the word "traveling" is used as a participle. A participle is a word that also takes the form of a verb, but functions as an adjective or as a noun.
The answer is the third one hope I helped