What is the optimal way to fix this?

The test method above calls an @future method that increments the Number_of_Times_Viewed__c value. The assertion is failing because the Number_of_Times_Viewed__c equals 0.

@isTest

static void testIncrement() {

Account acct = new Account(Name = ‘Test’);

acct.Number_Of_Times_Viewed__c = 0;

insert acct;

AuditUtil.incrementViewed(acct.Id);

Account acctAfter = [SELECT Number_Of_Times_Viewed__c FROM Account WHERE Id =

:acct.Id][0]

System.assertEquals(1, acctAfter.Number_Of_Times_Viewed__c);

}

What is the optimal way to fix this?
A . Change the initialization to acct.Number_Of_Times_Viewed__c = 1.
B . Add Test.startTest() before and Test.stopTest() after AuditUtil.incrementViewed.
C . Add Test.startTest() before and Test.stopTest() after insert acct.
D . Change the assertion to System.assertEquals(0, acctAfter.Number_Of_Times_Viewed__c).