This could be one of two things, I need a bit more information, but perhaps you can decide.
Drip irrigation otherwise called trickle irrigation delivers water using tubes and emitters to the base of the plant. Subsurface irrigation uses a combination of tubes and emitters and is buried under ground. Good luck
Answer: Poor Communication
Dishonesty
Explanation:
1. Poor communication: Communication is vital in every relationship. The way people communicate in their relationship has either a negative or positive effect on the relationship. One of the main contributor to a detrimental relationship is poor communication.
When there's a communication breakdown, this will result into argument, low self esteem, hatred for each other etc.
2. Dishonesty: In every relationship, honesty is paramount. One should be honest in their relationships. Dishonesty brings about lack of trust and this is bad for the relationship. It's important to be transparent. Don't keep secrets from each other.
If this is for edge, the answer should be b.
Hope this helps!