The highlighted word is correctly used in sentence II. It is used here as a verb with the meaning 'to (cause to) change position'.
The highlighted word is correctly used in sentence III. It is used here as a verb with the meaning 'to (cause to) change an opinion or the way in which you live or work'.
The highlighted word is incorrect in sentence I. The helping verb 'was' is either followed by the past participle (V3) or present participle (V4), but not the base form of the verb. 'Move' should be replaced with the past participle form 'moved' as this is the sentence in passive voice with the subject 'she' being the receiver of the action [present participle is used when the subject performs an action in active voice which is not the case here]. The construct for passive voice is: 'Was + V3'.
Hence, option (b) is the answer.
Note:
Participle: A word formed from a verb (e.g. going, gone, being, been) and used as an adjective (e.g. working woman, burnt toast) or a noun (e.g. good breeding). In English, participles are also used to make compound verb forms (e.g. is going, has been). Consider the sentences given below:
Dancing at the party, the women fell on the ground.
Encouraged by her parents, Rita went on to pursue her passion.
The highlighted word in the first sentence is of the form Verb + ing and is used as a present participle. It is used to denote an action that is going on or incomplete or imperfect.
The highlighted word in the second sentence is of the form verb + ed. It is used as a past participle. It denotes the completed action or state of the thing spoken of.
A past participle ends with the following: -ed, -d, -t, -en, or -n.
One should take great care and never get confused between a gerund an a present participle. They use the same forms but perform different functions: a gerund is a verbal noun, while a present participle is a verbal adjective.
Active and Passive Voice: When the person doing the action is the subject, the sentence is said to be in active form/voice. When the subject is what the action is directed at, then the sentence is said to be in passive form/voice. For example: Active Voice: Rita and her friends performed a skit. Here 'Rita and her friends' (subject) perform the action. Passive Voice: A skit was performed by Rita and her friends. Here 'skit' is the subject (at which the action is directed).