Correct Answer: loading

Solution : The correct choice is the fourth option.

Loading is a verb that means to fill something with a large amount. It helps in conveying the intended meaning that the speaker dumped the tray on the side and started to fill up the dishwasher.

The meanings of the other options are as follows:

• Tantalising means causing desire and excitement.
• Upbringing means the instruction received by a child from its parents in childhood.
• Alienating means to make someone feel that they are different.

Therefore, the complete sentence is: "I dump the tray on the side and start loading up the dishwasher."