NPV & IRR $-$ Projects L & M$.$

Below is a graph of the NPVs of two projects, $L$ and $M,$ at different discount rates.

Which of the following statements is incorrect?

a$.$ If the discount rate is less than $7\mathrm{.}4\%,$ Project $M$ will have a higher NPV than Project $L.$

b$.$ At the crossover point both Projects $L$ and $M$ will have the same NPV$,$ so either project could be chosen.

c$.$ If the projects are mutually exclusive and the discount rate is $8\%,$ only Project $M$ would be acceptable.

d$.$ If the projects are independent and the discount rate is $10\%,$ both projects would be acceptable.

e$.$ If the discount rate is greater than $12\%,$ the company should NOT undertake either project.