The best strategic alliances are those which help a company move quickly from one strategic group to another. aim at raising an industry's barriers to entry. are those whose purpose is to create an industry key success factor. are highly selective, focusing on particular value chain activities and on obtaining a particular competitive benefit. involve joining forces in R&D to develop new technologies cheaper than a company could develop the technology on its own.

TRUE

Explanation:

Companies enter into strategic global business alliances for variety of reasons. One of the most important reasons is to gain access to another company's knowledge or resources. Companies can also decide to join forces to develop new products or to enter a market that neither could enter alone.

The best strategic alliances are those which help a company move quickly from one strategic group to another.

1. aim at raising an industry's barriers to entry.

One characteristic of strategic alliance is that a well-conceived alliance can mean a head start in a market, possibly even preventing other competitors from entering.  

2, are those whose purpose is to create an industry key success factor.

Forming strategic alliances is one approach to establishing standards in an industry.  

3. are highly selective, focusing on particular value chain activities and on obtaining a particular competitive benefit.

Strategic Alliances involves sharing research and development costs and facilities provides good value for money, while sharing expertise can speed up the process. The sharing of expertise is to obtain a particular competitive benefit.

4. involve joining forces in R&D to develop new technologies cheaper than a company could develop the technology on its own.

As stated in point 3 above, Sharing research and development costs and facilities provides good value for money, while sharing expertise can speed up the process.  

answer; tech (a) is correct;