Refer to figure. 
The turn shown in the picture is not a procedure turn; it has different outbound courses for categories A, B, and C, D. The information needed to answer this question can be found in the plan view - check the vertical profile, since details that are not clearly visible in the main diagram might be shown there.

After the “OA locator” waypoint, there is a segment labeled “2,” which specifies the outbound courses for the different categories: A & B fly 327°, while C & D fly 310°. Since the question concerns category C, we know that after passing the locator, the aircraft must turn to a course of 310°. Moreover, the procedure instructs to start the turn 1 minute after passing the OA locator to intercept the localizer on 183°.

“Start your turn from 310° to 183° 1 minute after passing the OA locator.'” → CORRECT. Has been explained above.

“Maintain a minimum speed of 160 kt once established on the ILS.” → INCORRECT. According to Note 3 (marked in the green box), the aircraft must maintain a speed of 160 kt. This means that 160 kt is the required speed, not the minimum speed.

“Maintain 183° and 2000 ft until intercepting the glideslope at 6.2 NM from ZWA.” → INCORRECT. At the top of the chart, no glideslope interception altitude is published (as marked in the blue box). Therefore, 2000 ft cannot be considered the glideslope interception altitude.

"You can begin to descend below 3000 ft after passing the OA locator." → INCORRECT. You cannot descend to 3000 ft after passing the locator; this altitude must be maintained, as shown in the plan view, until you start turning onto the inbound course of 183°.