If a number is a whole number, then it cannot be An irrational number

An integer

A rational number

A natural number

A cannot be irrational numbers

Explanation:

It can't be irrational numbers because irrational numbers cannot be written as a fraction.  

the correct answer is d. in john paston's letter written friday, 14, 1476, he expresses his fear that he may have to go to war.

indeed, although the black death was ravaging europe, the pastons were relatively safe from it due to their social status as they were part of the landed gentry. it is clear that the vast majority of the victims of the pandemic were the poor. the reason why he is weary of having to go to war is because at the particular time england was also devastated by the war of the roses and paston, being a courtesan was inevitably involved.