Answer:
a.True
Step-by-step explanation:
The objecting of creating a portfolio is to diversify the investment as the proverb says, "do not put all the eggs in the same basket."
When a portfolio is created, rather than putting all the money in a single stock, stocks of different companies or industries can be purchased wherein the chances of earning a higher return increase and at the same time, the risk is spread over several securities.
It means if one stock incurs a loss it can be offset by profit from another stock which reduces the risk an investor is exposed to.
Thus, the given statement is true.