16. Considering the potential risks associated with the upcoming flu season individuals __ from getting vaccinated to protect themselves and those around them. A)had to benefit B)would benefit C)could benefit D)could have benefited E) must have benefited

## Step 1<br />The problem is a multiple-choice question that tests your understanding of modal verbs in English. The modal verbs in question are 'had to', 'would', 'could', 'could have', and 'ust have'. These modal verbs are used to express different degrees of necessity or possibility.<br /><br />## Step 2<br />The sentence in question is: "Considering the potential risks associated with the upcoming flu season, individuals __ from getting vaccinated to protect themselves and those around them."<br /><br />## Step 3<br />The sentence is discussing the potential risks of the flu season and the importance of getting vaccinated. The blank in the sentence needs to be filled with a modal verb that expresses a strong recommendation or necessity.<br /><br />## Step 4<br />Looking at the options, 'had to' and 'ust have' express a strong obligation or necessity, but they are not suitable in this context because the sentence is not about a past event but a future possibility.<br /><br />## Step 5<br />'Would' and 'could' are used to express a future possibility or recommendation. 'Would' is used when the speaker is giving advice or making a suggestion, while 'could' is used when the speaker is giving advice or making a suggestion that is not as strong as 'would'.<br /><br />## Step 6<br />In this context, the sentence is giving advice about getting vaccinated to protect oneself and others. Therefore, 'could benefit' is the most suitable option because it expresses a strong recommendation while also acknowledging the possibility of not getting vaccinated.