The provided network diagram illustrates the activities involved in introducing a fresh juice drink, with a total duration of 220 days. The critical path is identified as A+ B+ C+ E+ F+ G+ J+ K+ L+ M+ N+ O, which takes 192 days. Additionally, financial tools such as capital budgeting and net present value (NPV) are used to evaluate the viability of investing in the fresh juice drink business. The summary concludes that ABC Ltd. should invest in the fresh juice drink business to achieve success in a competitive market.