My guys and girls got me right? I am giving brainliest ( science not biology )

Which strategy is an example of how companies may upgrade themselves to meet changing customer preferences? a.doing door-to-door sellingb.using billboards to advertise the productsc. making online shopping services availabled.giving discounts on products

This is one of the five kingdoms in the older biological succession. organisms in this kingdom are prokaryotic

Which organisms have pharyngeal arches that develop from all three germ layers and go through the same development stages as embryos? 1.bird 2.ladybug 3.starfish 4.snake