Read the following article and answer the question by choosing from the options.

Thinking became more and more important to me and finally I was thinking all the time . That was when things began to sour at home . One evening , I turned off the TV and asked my wife about the meaning of life . She spent that night at her mother 's .

Why did their wife spend the night elsewhere ?
Select from the following.
(I). Because they had car trouble ..
(II). Because their mom needed help ..
(III). Because they needed to pick something up from there ..
(IV). Because they got into a fight .....A:
(IV).