The correct answer is: d) All of the above.
Improving transport infrastructure is important for developing Manipur as a trade hub because it will make it easier for goods to be transported to and from the state. This will make it more attractive to businesses to invest in Manipur, and will also make it easier for people to travel to and from the state.
Setting up Special Economic Zones (SEZs) is also important for developing Manipur as a trade hub because SEZs offer a number of benefits to businesses, such as tax breaks and relaxed regulations. This can make it more attractive for businesses to invest in Manipur, and can also help to create jobs in the state.
Promoting exports is also important for developing Manipur as a trade hub because it will help to increase the state’s economic output. This can be done by providing support to businesses that export goods, and by promoting Manipur’s products to potential buyers.
In conclusion, all of the options are important for developing Manipur as a trade hub.