6392. When I look back over there wartime years I cannot help feeling that time is an inadequate and even capricious measure of their duration at one moment they seem so long, at another so short.

✅ The correct answer is option B.
misleading : giving the wrong idea or impression.

whimsical : acting or behaving in a capricious manner.

erratic : not even or regular in pattern or movement; unpredictable.

unpredictable : not able to be predicted; changeable.

capricious : given to sudden and unaccountable changes of mood or behaviour.

Synonym of capricious is whimsical