The US government should establish a new expert regulatory body to ______ the huge and growing threat posed by disinformation on digital platforms. 1. pacify 2. reproach 3. tackle 4. handle 5. repair 6. reprimand

The sentence seeks to convey that the US needs to do more in order to control the threat of disinformation on digital platforms. We need a verb in the base form to fit in the infinitive construction of TO+VERB. TACKLE and HANDLE fit contextually. If you TACKLE a difficult problem or task, you deal with it in a very determined or efficient way. If you HANDLE a particular area of work, you have responsibility for it. PACIFY-quell the anger, agitation, or excitement of someone REPROACH- express to (someone) one's disapproval of or disappointment in their actions. REPAIR- restore (something damaged, faulty, or worn) to a good condition. REPRIMAND- a formal expression of disapproval.