Questions 143~146 refer to the following webpage.
An unhealthy diet is the biggest cause of non-communicable disease. And the way we produce food is rapidly degrading the planet -- __143__ 70% of biodiversity loss on land and 50% in fresh water, and being responsible for around 30% of greenhouse gas emissions.

Some foods are, __144__ , worse for the planet than others.

__145__ animal-sourced foods generally have a bigger impact on nature than plants and crops, the production of meat, dairy and seafood can be particularly harmful.

Meat tends to have the highest environmental impact, partially because livestock produce methane emissions through their digestive process - something called enteric fermentation - but also because most meat comes from livestock fed with crops, __146__ means the environmental footprint is not just the resources used for the livestock, but also those that go into producing the feed.

Source: Living Planet Report by WWF
【題組】143.
(A) cause
(B) causal
(C) to cause
(D) causing