Answer:
The word that acts as the direct object is "therapy"
Step-by-step explanation:
A direct object can be a noun, pronoun, phrase, or clause which follow a transitive, or action, verb.
In order to recognize such direct objects, it is advisable to follow this formula:
Subject + Verb + what? or who? = Direct Object.
Bearing the above in mind, it could be said that The word that acts as the direct object in the sentence: "Jason suggested therapy for three times a week" is therapy.