Answer: lacking strength
Explanation:
The highlighted word is ''frail''.
The definition of frail in relation to a human being is someone who is physically weak and fragile.
In this context therefore, it is logical to assume that the word means that the person being referred to (the mother) is lacking strength. This would make sense because the mother is getting old and people get weaker as they age.
I think it is C, because if I'm right present principal is something that is happening presently? If so, C would be the answer because they "are doing" the exercises right now in context.
I think, "This text will be arranged in order of importance" because all of the above happen to be important things meaning that the rest will be important, then go to un-important.
Sean Connery was JB in 7 films.
Dr. No (1962)
From Russia with Love (1963)
Goldfinger (1964)
Thunderball (1965)
You Only Live Twice (1967)
Diamonds Are Forever (1971)
Never Say Never Again (1983) (unofficial)