Killian decides that he needs a few days away from it all to think out his ideas. He takes up an offer from a friend to spend a few days in his mountain cabin. During this time, Killian imagines what his business will look like in $3$ years. He pictures his customers using his product and coming into his facility. Killian is engaging in a practice called $$

$$ a$.$ strategic planning

b$.$ detailing

c$.$ Business Model Canvas

d$.$ Vivid Vision