Which of the these is the best description of a physics property of matter

A. a property that causes a substance to chemically
change to something else

B. a property that does not help describe a substance

C. a property that can observe without the substance being chemically changed

D. a property that is not observable to a person

if im not mistaken its a. collective emotional arousal

1. artillery

2. jose san martin

3.their economies remained dependent on outside powers.

4. drafted new economies

5. democracies have replaced dictatorships

question 1: the kuwaiti government announced us$1.5 million in aid for rohingya refugees.they pointed out that it was imperative to take immediate and concrete steps to ramp up pressure on myanmar to put an end to the violence.and said   that they r just shameful

question 2: the rohingyas were not aloud to be seen as people in myanmar.in the last few years, before the latest crisis, thousands of rohingya were making perilous journeys out of myanmar to escape communal violence or alleged abuses by the security forces.the latest exodus began on 25 august 2017 after rohingya arsa militants launched deadly attacks on more than 30 police posts.rohingyas arriving in an area known as cox's bazaar - a district in bangladesh - say they fled after troops, backed by local buddhist mobs, responded by burning their villages and attacking and killing civilians.