Final answer:
The correct completion for the statement about petrol prices is 'It has been announced'. This correlates with economic activities, including oil price changes, advancements in drilling technology, and overall market conditions. Option number d is correct.
Step-by-step explanation:
The correct sentence to complete the statement 'It _______ that petrol prices will rise in a month.' is 'It has been announced'. This implies that a statement has been made by some authority or source saying that there will be an increase in petrol prices in the coming month. Consider how this might relate to various economic factors mentioned such as:
- A rise in the price of oil often leads to higher petrol prices.
- Introduction of new oil-drilling equipment that is cost-effective and requires fewer workers might impact the supply side of the oil market, potentially affecting prices.
- Other economic events, like rapid growth of exports, increasing inflation, changes in unemployment rates, and fluctuations in oil prices, can all influence the costs of commodities like petrol.