Zenni optical is an online store that allows a high degree of customization of the glasses you buy, including a variety of frames and lenses, so that you can custom-build the exact pair of glasses you want. no two consumers may end up with an identical pair. this firm is probably using an) targeting strategy. o a) undifferentiated o b) concentrated o ) differentiated od) micromarketing

This firm is probably using a micromarketing targeting startegy.

Explanation:

Market targeting strategy the method through which a firm will satisfy customers by segmenting them according to some predefined criterion; either age, gender, income and so on.

Micro marketing relates to the firm's process of aligning products and services to each and every customers' particular needs. The interaction between the firm and the consumer is mostly at a personal level and also practiced generally by small businesses. It could also be referred to as customised marketing because it takes into account the uniqueness of every customer and matches income accordingly. The other types of targeting strategies are undifferentiated, differentiated and concentrated strategies.

there's 11 people for the 1st position. then, no matter who gets it, there's only 10 left for the second, and then 9 left for the third. 11 x 10 x 9 = 990.   the answer is there are 990 different ways the positions can be filled by these applicants