A literature department at a small university in an English-speaking

A literature department at a small university in an English-speaking country is organizing a two-day festival in which it will highlight the works of ten writers who have been the subjects of recent scholarly work by the faculty. Five writers will be featured each day. To reflect the department's strengths, the majority of writers scheduled for one of the days will be writers whose primary writing language is not English. On the other day of the festival, at least four of the writers will be women. Neither day should have more than two writers from the same country. Departmental members have already agreed on a schedule for eight of the writers. That schedule showing names, along with each writer's primary writing language and country of origin, is shown.

Day 1
Achebe (male, English, Nigeria)
Weil (female, French, France)
Gavalda (female, French, France)
Barret Browning (female, English, UK)

Day 2
Rowling (female, English, UK)
Austen (female, English, UK)
Ocantos (male, Spanish, Argentina)
Lu Xun (male, Chinese, China)

Select a writer who could be added to the schedule for either day. Then select a writer who could be added to the schedule for neither day. Make only two selections, one in each column.

Either day Neither Day
LeGuin (female, English, USA)


Longfellow (male, English, USA)


Murasaki (female, Japanese, Japan)


Colette (female, French, France)


Vargas Llosa (male, Spanish, Peru)


Zola (male, French, France)

My Question is:

The answer shows that Longfellow will come under Neither Day.. which I agreed and Murasaki will come under Either Day .. which I am not able to agree.. There is a statement saying that "On the other day of the festival, at least four of the writers will be women." and the schedule made has 3 women on first day and 2 women on 2nd day. Firstly, this is violating the statement itself. However, if we presume that the other day could be the 1st day then Murasaki should come in 1st day only... then how come she can be eligible for either day option. Secondly, why Vargas is not eligible to come in either day option?