<p>The correct answer is <strong>(A) was dissatisfied</strong>.</p>
<p>In this sentence, we need to use the past tense to indicate that the manager was dissatisfied in the past. Therefore, we need to use the past tense of the verb "to be," which is "was." Additionally, we need to use the adjective "dissatisfied" to describe the manager's feeling towards the quality of the goods. Therefore, the correct form is "was dissatisfied."</p>
<p>Option (B) "dissatisfied" is incorrect because it does not use the correct past tense form of the verb "to be."</p>
<p>Option (C) "was dissatisfying" is incorrect because it uses the present participle form of the verb "to be" instead of the past tense form.</p>
<p>Option (D) "being dissatisfied" is incorrect because it uses the present participle form of the verb "to be" instead of the past tense form.</p>