The last options seems right. the one that is " Trees that are not native to North Texas, are often killed by heat and drought. "
Oblivious - Not aware of what is going on around you.
Use language that's easy-to-understand. If there's a piece of vocabulary that you feel needs clarifying, define it!
Nobody likes a short, one-word-answer. Let’s make sure other people understand everything.
Explain everything. Imagine that the person who was asking, knows nothing at all so you need to start from the very beginning.
Answer:
To be a good person means a lot to you and others around you. A good person can be reliable, trusted, honest and truthful.
In that case the first person is right, because is you lie to spare others feelings you may still hurt or disturb others feelings. In other words, others may not trust in you anymore and can term you as a bad person, and this may disturb your own feeling.