Exam CRT-450 Topic 2 Question 16 Discussion

Management asked for opportunities to be automatically created for accounts with annual revenue greater than $1, 000,000. A developer created the following trigger on the Account object to satisfy this requirement.
for (Account a : Trigger.new) {
if (a.AnnualRevenue > 1000000) {
List<Opportunity> oppList = [SELECT Id FROM Opportunity WHERE AccountId = :a.Id]; if (oppList.size() == 0) { Opportunity oppty = new Opportunity(Name = a.Name, StageName = 'Prospecting', CloseDate = System.
today().addDays(30));
insert oppty;
}
}
}
Users are able to update the account records via the UI and can see an opportunity created for high annual revenue accounts. However, when the administrator tries to upload a list of 179 accounts using Data Loader, it fails with system, Exception errors.
Which two actions should the developer take to fix the code segment shown above?
Choose 2. answers