Which one is not true about B$2$B consumer behavior?

a$)$ B$2$B decisions are high$-$involvement ones

b$)$ Usually, multiple parties involve in a buying decision

c$)$ B$2$B buying decisions are more rationally made than B$2$C

d$)$ To approach B$2$B decision makers, sellers need to understand potential buyer's success factors

e$)$ To approach B$2$B decision makers, sellers need to understand potential buyer's perceptual errors