Answer:
past time focus on what happen yesterday and present time focus on what's going to happen today, tommorrow or next day.
Answer:
Well A and B are wrong because the passage clearly states otherwise. C is close but the ENTIRE passage isn't about the experiments. I say D is correct
An example of a problem with the introduction of new goods in the construction of the CPI is: the invention of cell phones.
<h3>What is CPI?</h3>
CPI is an acronym for consumer price index and it can be defined as a measure of the the average change in prices for a weighted average basket of goods and services that are purchased by households in an economy, over a specific period of time.
This ultimately implies that, a consumer price index (CPI) can be used to estimate the price changes in a weighted average basket of goods and services that are purchased by households in an economy, over a specific period of time.
In conclusion, an example of a problem with the introduction of new goods in the construction of the consumer price index (CPI) is the invention of cell phones.
Read more on consumer price index here: brainly.com/question/5811771
if you know the username then im sure you can look it up