According to Peter, Black Diamond product designers visit the factories that make the company$$s products, sometimes for weeks at a time. These visits are likely to achieve which of the following purposes? Check all that apply.

a$.$ Strengthening ties between designers and manufacturing managers

b$.$ Allowing the designers to broker relationships at the manufacturing site

c$.$ Increasing manufacturers$$ perceptions of the designers$$ likability

d$.$ Increasing the designers$$ centrality in their networks