Seems like it got question 4 wrong... Who implies someone is pregnant to make them feel good? You imply someone is pregnant because they appear pregnant.
Assuming someone's physical appearance is such that they have a large belly. Assuming that they are pregnant (if true) is likely to make someone feel good, whereas assuming that they are fat (whether it's true or not) is likely not to make someone feel good.
It depends if there's a base assumption that someone is self-conscious and has a negative feeling about their size.
I certainly think it's reasonable to say that you implied someone was pregnant to make them feel good about themselves.
I would say question 4 and 5 could've been answered better.
4: it is common courtesy to congratulate someone who is pregnant if they are very obviously pregnant
5: unless there are less common motives unknown to us, it is very likely that Ana was quite confident that Maria was pregnant. To congratulate someone on being pregnant, when they are not, is embarrassing for all involved parties, and is most commonly only done in error.
Assuming someone's physical appearance is such that they have a large belly. Assuming that they are pregnant (if true) is likely to make someone feel good, whereas assuming that they are fat (whether it's true or not) is likely not to make someone feel good.
It depends if there's a base assumption that someone is self-conscious and has a negative feeling about their size.
I certainly think it's reasonable to say that you implied someone was pregnant to make them feel good about themselves.