The person above me is correct lol
C: circular.
The Hubble sequence is a form of classification of galaxies invented by Hubble in 1926. The sequence divides galaxies into three main categories: lenticular, elliptical and spiral. There is a fourth category that is called irregular, where there are the galaxies that do not fit the characteristics to be included in the three previous categories.
This categorization is the most used even today by both amateurs and astronomers.
Answer: Your husband is working hard to pay bills; he's probably just too tired to do anything else.
Explanation: Working can become very stressful and can sometimes be very overwhelming for an individual. Stress creates exhaustion and that oftentimes can lead to becoming mentally and physically drained.
The correct pronoun is their.
Every contestant should wear their best suit on Tuesday.
Their is a personal pronoun that means belonging to or associated with the people or things previously mentioned or easily identified. Therefore the suits belongs to the contestants, there is more than one contestant, we don't know if they are male or female and 'it' refers to objects not people so the correct pronoun is their.