$(5$ pts$)$ You observe the following quotes:

MXN $1=$ USD $0\mathrm{.}06(1)$

CAD $1=$USD$0\mathrm{.}76(2)$

CAD $1=$ MXN $11\mathrm{.}9(3)$

a$.$ Is there triangular arbitrage opportunity?

b$.$ How much would the arbitrage profit be if you have $$1$ million USD to start with?

c$.$ What market forces would occur to eliminate any further possibilities of triangular arbitrage