How do I apply PWM signal to the primary side of a transformer to get synthesized sine wave at the secondary side?
Dave answered your question nicely, but I want to point out a additional issue with choice 3.

Choice 3 is a perfectly viable alternative, but the voltages are usually flipped around.  The main advantage of driving a center-tapped primary is that both switches can be on the low side, which generally makes them easier to drive.  For example, they can be NPN bipolar transistors or N-channel FETs with the emitter (bipolar) or source (FET) grounded.  The center tap is then connected directly to the power supply.

The drawback is that the side of the primary that is not being driven will act like a secondary.  Another way to think of this is that the primary winding works like a auto-transformer.  The result is that the undriven end of the primary will go to twice the supply voltage.  That means your low side switches have to be able to withstand twice the voltage than if a regular primary were driven with something like a H-bridge.

This higher voltage stress on the switches is one reason you see center-tapped primaries more when the input voltage is low.  For example, if the power is coming from a 12 V battery, then the switches only need to handle around 30 V.  There are many nice FETs to choose from with such a low voltage rating.  However, if the power supply is rectified AC, that would be 170 V at least here in the US.  The switches would have to withstand 340 V at least, so probably 400 V devices in practise.  The available transistors will be fewer, have less desirable characteristics, and be more expensive.  If the power supply is rectified line voltage anywhere in the world, then the voltage ratings of the switches becomes really inconvenient.