Let a system allocate resources to processes as long as the system state remains safe with respect to deadlocks. Note that a system state is safe if there is a way to allocate the remaining resources in such a manner as to satisfy the maximum needs of all the processes. With respect to a resource R, let the system have 10 instances of the resource and let there be five processes P1, P2, P3, P4 and P5 that have maximum needs of 5, 7, 4, 9 and 8 instances of the resource respectively.
Start with a safe state in which P1 is holding no instances, P2, P3 and P4 are holding two instances each and P5 is holding one instance of R. Now, consider each of the following requests. For each request, determine if it can be granted while keeping the system in a safe state. Identify the request that can be granted safely.
A. P1 requesting one instance of R
B. P5 requesting one instance of R
C. P2 requesting two instances of R
D. P4 requesting one instance of R

(because i need 20 chars)

the benefits of raising bc’s minimum wage to $15 through a

series of pre-announced staged increases far outweigh the likely

costs. claims that such an increase will lead to massive job losses

in low-wage sectors of the economy are not credible.

• an increase to $15 would result in some job losses. however,

the likely impact is less than a 1 per cent reduction in the overall

provincial employment rate, and a 7.6 per cent reduction in the

employment rate for those currently making between $10.25

and $15 per hour.

• the large job loss impacts predicted by some opponents of

minimum wages misrepresent the existing economic research. in

reading and using that research, it is important to recognize that

estimates showing job loss effects of minimum wage increases

apply only to teenagers. estimated effects for young adult and

adult workers range from insignificant to non-existent.

• focusing on teenage workers plays up an inaccurate stereotype

about who earns very low wages in bc and leads to exaggerated

claims about job losses. only 26 per cent of those currently making

between $10.25 and $12 are teenagers, and only 5 per cent

of those making between $12 and $15 are teenagers.