Answer:
C. anti spyware
Explanation:
this is a type of program designed to prevent and detect unwanted spy program installation and to remove the programs if installed. it will also protect computers from data corruption, pop-up ads, hackers , identity theft and other online - related threats.
Answer:
Real Interest Rate = -2.7%
Explanation:
The formula to calculate the Real Interest rate is:

Here,
r = Real Interest Rate
i = Nominal Interest Rate = 3% = 0.03
p = Rate of Inflation
We have the value of Nominal Interest Rate. Before using the formula we need to calculate the Rate of Inflation. We have the values of CPI at the beginning and end of the year. From these we can calculate the Inflation Rate. The formula to calculate the inflation rate is:

Using the values in this formula, we get:

Now we have all the values that we need to use. The values in the formula will be used in decimals, not in percentages. Substituting the values, we get:

Thus, the Real Interest Rate that Juanita earned is -2.7%. This shows that rate of Inflation is more than the Nominal Interest and the value of her savings actually decreased compared to the beginning of the year.
Ethically probably harder,
Answer:
The correct answer is letter "A": Countertrade arrangement.
Explanation:
A countertrade arrangement is a type of trade based on bartering where countries exchange goods or services they produce without any currency involved in the transaction. The disadvantage of this mechanism relies on the complexity of setting a standard value for the goods being traded.