The subjunctive mood is the best.
The subjunctive is rarely used in colloquial English. Totally irrelevant information, but... it is a relic from Latin, where there are many uses for a subjunctive. There is even a special conditional using the subjunctive mood that expresses the exact circumstances you described, which is usually called future less vivid.
The shirt is a motercycle
That dosen’t really make since in English, the only thing I might have wrong is the last word.
Answer:
The desert is dry, scorpions thrive in the desert.
Explanation:
No added words, the comma makes the dependent clause hook onto the independent clause.
Choice a
a hierarchy is a system not a title such as king or queen