Explanation
Orel's goal is to build emergency savings, which means he needs a flexible and accessible account that does not penalize withdrawals. A TFSA is more suitable for this purpose, as it allows tax-free withdrawals at any time and does not affect other income-tested benefits. An RRSP, on the other hand, is designed for long-term retirement savings, and withdrawals are subject to income tax and withholding tax. Moreover, RRSP withdrawals reduce the contribution room permanently, and may affect eligibility for government benefits such as the Canada Child Benefit or the Guaranteed Income Supplement.
References = Canadian Investment Funds Course (CIFC) - Module 3: Registered Plans - Section 3.1:
Registered Retirement Savings Plan (RRSP)1 and Section 3.2: Tax-Free Savings Account (TFSA)2
1: https://www.ifse.ca/wp-content/uploads/2021/08/CIFC-Module-3.pdf 2:
https://www.ifse.ca/wp-content/uploads/2021/08/CIFC-Module-3.pdf