The correct answer is A. grass
Answer:
The correct answer would be hybridization.
Hybridization refers to the process by which organisms of different breed, species, or varieties are selectively interbred in order to produce offspring with desired characters.
Similarly, Maltese dogs were selectively bred in order to attain characters like the small size, less shedding of hairs et cetera.
Asthma. When most people that have this disease encounter one of those things then they need special little tool which is called an inhaler.
Minerals are composed of multiple elements and rocks are actually made up of minerals. Take quartz for example, it's a mineral that's made up of silicon and oxygen. If we then look at the igneous rock that is referred to as granite, we'll see quartz (the main one), mica(s), and feldspar.
So your answer is B. :)