please help with multiple choice

QUESTION 7 The Fourth Amendment and subsequent judicial decisions regulate the need for a warrant to arrest. As a general rule, to make a valid arrest, a police officer: O must possess a warrant to arrest an individual who was sitting in his or her automobile. O must always have an arrest warrant to comply with Fourth Amendment requirements. O must have an arrest warrant unless the crime was committed in the officer's presence. must possess probable cause to arrest an individual, but need not normally possess an arrest warrant. O never needs an arrest warrant so long as probable cause exists. QUESTION 8 If police officers have probable cause to search a motor vehicle, as occurred in the Carroll v. United States case, O they may search only the areas that are visible to them and may not open the trunk of the vehicle. the officers must get permission from the driver of the vehicle, if the driver can be easily located, otherwise, they may conduct the search. O must procure a warrant where there is time to obtain the warrant prior to conducting a search even where probable cause exists. O they may warrantlessly search anywhere within the motor vehicle where the object for which they have probable cause reasonably might be located. O they must seize and hold the motor vehicle until such time as a warrant can be obtained because warrants are generally needed for motor vehicle searches. QUESTION 9 in a stop and frisk context, if the explanation offered by the subject reasonably satisfies the officer that a crime is not occurring and has not already occurred, the officer: O cannot lawfully frisk the subject just to see what might turn up. O can still frisk the subject if the initial reason for the stop involved the use of the drug courier profile. O may still frisk the subject to check for weapons since a weapons check is reasonable in all circumstances. O can still frisk the subject if the officer has a hunch that maybe illegal drugs it could be found on the subject. O may restrain the subject until the subject gives consent for a frisk